Best Mineral Spirits: Top 10 Picks for Every DIY Project

Paint brushes stiff with dried oil-based paint, stubborn stains clinging to surfaces, and harsh fumes that sting your eyes turn finishing jobs into full-blown headaches. The wrong thinner can make these problems worse indoors, where ventilation is limited and patience wears thin fast.

KLEAN-STRIP Odorless Mineral Spirits tackles thick paint and varnish with a low-odor, powerful formula that cleans quickly without choking off your room. Gamblin Gamsol offers an unscented, environmentally thoughtful solvent aimed at artists needing gentle, safe thinning and cleaning. Both excel at indoor use without overwhelming fumes.

Rust-Oleum’s Low VOC Mineral Spirits focus on reducing brush drag and ensuring a smooth, drip-free finish, filling the gap for automotive and DIY projects that demand premium flow and easy handling.

Discover the Best Mineral Spirits for Every Project

Choosing the right mineral spirits can elevate your painting, staining, and cleaning tasks, delivering professional results with minimal odor and maximum efficiency.

1. KLEAN-STRIP Odorless Mineral Spirits 1-Gallon – Effective Paint and Stain Thinner

Handling interior refinishing tasks often means dealing with stubborn residues that resist easy cleanup. KLEAN-STRIP offers a solution with its odorless liquid tailored to dissolve and remove oil-based substances swiftly.

Unlike harsh solvents that overwhelm with fumes, the low-odor formula makes indoor use more comfortable while keeping air quality in check. This blend is specially designed to not only thin oil-laden paints but also to mellow stains and varnishes for smoother application.

Carefully crafted by KLEAN-STRIP, this product excels at restoring brushes and equipment after a vigorous project, preventing buildup and prolonging tool lifespan. Its versatility extends to freeing dried paint splatters, making final cleanup less tedious.

With a full gallon supply, it supports extensive projects without repeated trips for more solvent, promoting efficiency during your refinishing jobs. Easy brush cleaning and multi-purpose thinning make it a practical choice for DIYers and professionals alike.

Best for: Home renovators or craftsmen working on indoor wood finishing or painting tasks seeking an effective, low-odor solution for cleanup and thinning needs.

Pros:

• Odorless formulation suitable for indoor use
• Efficient thinning of oil-based paints and varnishes
• Cleans brushes and equipment thoroughly
• Removes paint splatters with ease
• Available in a generous 1-gallon container

Cons:

• May require additional ventilation despite low odor in tight spaces
• Primarily suited for interior jobs; external use might call for different solvents

2. Gamblin Gamsol 128 oz Odorless Solvent for Professional Art and Studio Use

Eliminate harsh fumes with this low-odor, odorless solvent designed specifically for artistic environments. Its gentle formula is safer for delicate surfaces, painters’ health, and even environmental concerns, making it a thoughtful choice where traditional solvents fall short.

Effectively thin mediums and clean brushes without sacrificing performance. Gamblin’s proprietary solution is trusted by experts and formulated to maintain the integrity of both fresh and dried paint.

Contained in a large, 128-ounce bottle, it supports extensive use in studios or professional settings, minimizing frequent replacements and streamlining workflow. The unscented liquid makes working indoors more comfortable and manageable.

Experience professional-grade quality trusted by artists who demand precision. Its powerful solvent action balances efficacy with a restrained chemical profile that doesn’t overpower your creative space.

Best for: Artists and hobbyists who require a clean, reliable thinning and cleaning solution that respects both their health and their work environment.

Pros:

• Low-odor, virtually odorless for comfortable indoor use
• Large volume suitable for extended projects or studio work
• Safe alternative to more toxic solvents like turpentine
• Maintains paint quality while thinning and cleaning
• Trusted by professional artists for consistent performance

Cons:

• The large container may be bulky for casual or occasional users

3. Rust-Oleum Automotive 32-Ounce Low Odor Thinner for Oil-Based Paints and Stains

Working with oil-based paints and stains can challenge even experienced DIYers, especially when it comes to achieving a smooth, drip-free finish. Rust-Oleum offers a powerful solution designed to thin your paints while reducing brush drag and pull.

Its low odor formula makes it easier to use indoors and keeps lingering chemical smells to a minimum.

Formulated to boost flow and leveling, this thinner leaves no residue behind, ensuring your coatings maintain integrity and appearance without cloudiness or stickiness. The included brush component helps you apply or clean up with precision.

Rust-Oleum’s commitment to premium performance is evident in its ability to handle both interior and exterior projects.

Because it’s not water resistant, it caters perfectly to those who want a traditional mineral solvent with clean evaporation and no oily buildup. It also supports professional and hobbyist painters looking for a thinner that works hard but stays manageable.

The satin finish it promotes is ideal when you need a balanced sheen on surfaces, without the risk of an overly glossy or flat look. Lightweight and easy to handle, this quart container holds a solid amount for full coverage jobs or multiple small projects.

Best for: Painters tackling oil-based coatings who need a reagent that enhances brush control and minimizes lingering odor.

Pros:

• Low odor profile suitable for indoor use
• Effectively thins oil-based paints and stains
• Minimizes brush drag for smoother application
• Leaves no residue, ensuring clean finishes
• Supports both interior and exterior projects

Cons:

• May require proper ventilation despite low odor for some sensitive users

4. PHOENIX Premium Oil Paint Thinner 8.5 Fl Oz – Low Odor Solvent for Artists

Diluting thick, stubborn oil paints can often blur your vision for detail and color vibrancy. PHOENIX offers a refined solvent that maintains pigment integrity while improving paint flow and blending ease.

Its specially hydrotreated petroleum distillates provide a smoother medium without overpowering fumes.

Ideal for removing paint from brushes and palettes, this liquid acts gently, avoiding damage common with harsher solvents. It protects both natural and synthetic bristles, extending the lifetime of your tools with every use.

Designed with indoor studio work in mind, the formula is virtually odorless and non-toxic, reducing typical solvent discomforts. Its compact 8.5 fluid ounce bottle comes with a leak-proof design that ensures clean handling and secure storage.

PHOENIX stands out by offering a safe, low-odor alternative that complements your creative environment without compromise, letting you focus on your art rather than harsh chemical fumes. Enhances paint blending and brush cleaning effectiveness while staying sensitive to indoor air quality.

Best for: Artists seeking a gentle yet effective paint thinner and brush cleaner suited for indoor studios.

Pros:

• Refined solvent preserves true paint colors
• Low odor and non-toxic for safer indoor use
• Gentle on both natural and synthetic brushes
• Leak-proof, easy-to-pour 8.5 fl oz bottle
• Multifunctional as both diluent and cleaner

Cons:

• Smaller volume may require frequent replenishment for heavy use
• Mild odor might still be perceptible to very sensitive individuals

5. Gamblin Gamsol Low Odor Solvent for Oil Painting, 8.5 oz Bottle

When precision and safety matter during the creative process, choosing the right solvent can redefine your painting experience. Gamblin’s Gamsol offers a clean, odorless alternative that performs reliably without overwhelming fumes.

Perfectly suited for thinning oil-based mediums and cleaning brushes indoors, this liquid covers approximately 60 square feet, making it efficient for detailed work and routine maintenance. It’s crafted to be non-toxic and reusable, aligning with safer art practices and environmental care.

The solvent’s low odor quality ensures you can work longer with less discomfort, a significant advantage over traditional turpentine. Gamblin’s formulation also prioritizes durability, giving you consistent results across multiple uses.

Lightweight and compact, the 8.5 fluid ounce bottle easily fits into your art toolkit or studio setup. Its matte orange tint is purely cosmetic and does not affect performance or drying time.

Best for: Artists seeking a dependable, less intrusive medium thinner for indoor oil painting sessions.

Pros:

• Odorless and low toxicity make it studio-friendly
• Effective for thinning and cleaning oil-based paints
• Reusable over multiple sessions, improving value and convenience
• Compact, easy-to-handle 8.5 oz bottle
• Suitable for indoor use with minimal ventilation required

Cons:

• Matte finish might not suit those preferring a clear liquid aesthetic

6. Recochem Inc. Recordsol Low Odor Paint Thinner with Mineral Spirits – 32 Oz for Efficient Cleaning & Coating Thinning

Handling tools and surfaces laden with stubborn grime can quickly turn into a tedious challenge. Recochem Inc. offers a specialized solvent that effectively breaks down tough stains, dried paint, and coatings without overwhelming your workspace with harsh fumes.

This paint thinner combines strong cleaning and degreasing abilities with a formulation designed to be low in odor and compliant with volatile organic compound (VOC) standards. It facilitates easier removal of residues while being considerate of indoor air quality.

Whether you’re aiming to improve the leveling and penetration of stains or need to thin coatings for better application, this 32-ounce solution efficiently enhances workflow. Its versatile performance makes it suitable for a variety of household and workshop tasks.

Compact in size and weighing under 2 pounds, the product is easy to handle and store. Incorporating this thinner into your routine provides reliable results when cleaning toys, tools, or preparing surfaces for refinishing.

Recochem’s attention to formulation ensures a balance between effective solvent strength and user comfort, offering a dependable option for tackling persistent residues.

Best for: Those who require a less intrusive solvent for persistent paint and coating removal in indoor or workshop environments.

Pros:

• Low odor formula reduces harsh smell during use
• VOC compliant, supporting safer indoor air quality
• Efficiently removes tough residues and dried paint
• Enhances flow and penetration of stains and coatings
• Compact and easy-to-store 32 oz size

Cons:

• Container size may require frequent refills for heavy users

7. Tusc & Pine StudioSolv™ Odorless Purified Spirit Solvent for Thinning and Painting

Oil paint enthusiasts often struggle with maintaining the true vibrancy of their colors when thinning heavy-bodied oils. StudioSolv offers a purified, odor-free solution that lets you control paint consistency without compromising pigment integrity. By removing aromatic solvents, this spirit ensures a cleaner, more pleasant studio environment.

Boasting a safer flashpoint of 144°F, it classifies as combustible rather than flammable, reducing hazards typically associated with solvent use. Its gentle evaporation rate means less frequent reapplication while refining brushstroke control for smoother finishes.

Designed in the USA with professional artists in mind, this thinner works wonderfully for all skill levels—from novices to seasoned painters—allowing tailored experimentation with your mediums. Caution: it’s best paired with oil paints rather than natural resin mediums like dammar or copal, which require turpentine.

Tusc & Pine’s formulation supports classroom and studio settings by providing a solvent that balances effectiveness with user safety and odor reduction. Using it sparingly preserves your paint’s consistency and color accuracy, empowering creativity without typical solvent drawbacks.

Best for: Painters and artists aiming to refine oil paint texture while maintaining safety and a low-odor workspace.

Pros:

• Odor-free and purified for a cleaner studio atmosphere
• Higher flashpoint enhances safety compared to flammable alternatives
• Maintains true color integrity of oil paints
• Made in the USA meeting ASTM standards
• Available in multiple sizes for convenience

Cons:

• Not compatible with natural resin mediums, limiting usage for certain traditional techniques
• Requires adequate ventilation despite odorless formulation for safe use

8. Sunnyside Corporation Low Odor Paint Thinner and Degreaser Gallon 6-Pack

Handling oil-based paints often means facing strong, unpleasant fumes and messy cleanup challenges. Sunnyside Corporation’s low vapor solvent offers a notable change by minimizing harsh odors while delivering the robustness needed for thinning paints or cleaning equipment. Its refined formula balances power with usability, allowing you to maintain brushes and spray tools without overwhelming scents.

Designed primarily for painting tasks, this liquid also shines as a versatile cleaner and degreaser. Whether you’re tackling greasy automotive parts or restoring bicycle components, it effectively dissolves residue without excessive fumes. The six-gallon pack ensures you’re ready to manage large projects or multiple touch-ups efficiently.

While electric ventilation is always recommended, its odor control makes indoor use more feasible. Metal surfaces respond well to its cleaning action, making it a solid choice for those maintaining painted tools or equipment. Its chemical scent is evident but noticeably subdued compared to conventional solvents.

Manufactured by Sunnyside Corporation, this product emphasizes reliable performance across various applications. The inclusion of six one-gallon containers supports both professional and home improvement needs, making it a practical addition to your workshop supplies. Expect effective thinning of oil-based compounds, dependable degreasing power, and low odor operation to keep your workspace manageable throughout cleanup.

Best for: Homeowners and professionals needing a strong yet less intrusive solvent for paint thinning and equipment cleaning tasks.

Pros:

• Low odor formula reduces discomfort during use
• Suitable for thinning oil-based paints and stains
• Multi-purpose cleaner and degreaser for various surfaces
• Comes in convenient six-pack gallon size for extended projects
• Refined and effective liquid consistency

Cons:

• Not available for sale in areas with strict VOC regulations, which might limit accessibility

9. Quality Chemical Premium Solvent for Oil-Based Paints and Metal Cleaning 5 Gallon

Cleaning up stubborn oils and greases on metal surfaces can often demand a solvent that goes beyond ordinary. This highly refined product offers a potent solution designed to thin and mix seamlessly with oil-based paints, stains, and varnishes.

Engineered to tackle residues like carbon and other tough materials, it excels in restoring metal parts to a cleaner, more workable state. Its premium formula ensures efficient thinning without compromising performance.

Whether you need to prepare a surface for painting or clear lingering grime, this 5-gallon pail delivers enough volume for substantial tasks while maintaining reliability in every use. Quality Chemical’s approach focuses on blending power with precision in solvent performance.

With a balance between effective cleaning power and paint preparation capabilities, this product eliminates the guesswork of handling multi-use solvents. It consistently supports professionals and hobbyists aiming for neat, refined results.

Best for: Craftsmen and DIYers handling oil-based finishes or maintaining clean metal components requiring thorough degreasing and thinning.

Pros:

• Highly refined for consistent performance
• Strong degreasing and carbon removal capability
• Excellent compatibility with oil-based finishes
• Sufficient volume to support extended projects
• Reliable thinning action for varnishes and stains

Cons:

• Large container size may be cumbersome for small projects

10. Nexkayee Odorless Paint Thinner 100ml for Oil-Based Paints and Easy Brush Cleaning

Painting environments quickly become unpleasant when strong chemical smells linger, but Nexkayee’s formula cuts through that by offering an odor-free thinning process. Designed specifically to maintain your paint’s original vibrancy, it helps you achieve the perfect consistency without any alteration in color or finish.

Helping you glide your brush effortlessly across the canvas, you experience smoother brushstrokes and flawless layering. Its clean evaporation leaves no oily residue, which means you can focus entirely on your creative flow rather than cleanup hassles.

Whether you’re setting up a studio session, working in a classroom, or painting outdoors, this thinner brings versatility for artists at all skill levels. It effortlessly softens heavy oil paints and adjusts mediums to your preferred texture.

Besides its artistic uses, the product doubles as a gentle but effective cleaning agent, perfect for thoroughly removing paint from brushes while avoiding harsh fumes. The Nexkayee brand positions itself as a studio essential by prioritizing reliability and safety without compromising performance.

Best for: Beginners and seasoned painters requiring a solvent that combines ease of use with professional-grade results.

Pros:

• Odorless formula keeps creative spaces comfortable
• Preserves the true colors and finish of oil paints
• Evaporates cleanly with no leftover residue
• Multi-functional for thinning paints and cleaning brushes
• Compact 100ml size ideal for studio or travel use

Cons:

• Small volume might require frequent replenishing for heavy users
• May not be suitable for large-scale industrial applications

Key Specs Compared: Top Mineral Spirits for Painting and Cleaning

Product Name	Volume	Odor Level	Primary Use	Special Features
KLEAN-STRIP Odorless Mineral Spirits	1 Gallon	Odorless	Thins paint, cleans brushes	Clears oil-based paints and varnish
Gamsol Odorless Mineral Spirits	128 fl oz	Unscented	Artistic use, thinning mediums	Low odor, environment safer solvent
Rust-Oleum Low VOC Mineral Spirits	32 fl oz	Lowest odor	Thins oil paints, stains	Reduces brush drag, premium performance
PHOENIX Oil Paint Thinner	8.5 fl oz	Virtually odorless	Brush cleaning, paint thinning	Non-toxic, ASTM D4236 compliant
Gamblin Gamsol Odorless Spirits	8.5 fl oz	Low odor	Thinning mediums, painting	Reusable, non-toxic formula
Recochem Recordsol Paint Thinner	32 fl oz	Not specified	Thins stains, cleans tools	Degreasing, improving paint flow
Tusc & Pine StudioSolv Mineral Spirits	1 Gallon	Odor free	Thinning oils, studio use	Higher flashpoint, ASTM D4236
Sunnyside Low Odor Mineral Spirits	128 fl oz x 6	Low odor	Paint thinning, degreasing	Refined solvent, multi-pack

What Should You Look For When Choosing the Best Mineral Spirits?

Picking the right mineral spirits isn’t just about grabbing the first container off the shelf. The details hidden beneath the label shape your experience, safety, and results. A handful of factors can make a huge difference in how effective and user-friendly your choice turns out to be.

Odor Level and Indoor Usability

Odor level is frequently the first thing people notice when selecting mineral spirits. It’s crucial because strong fumes can be not only unpleasant but also harmful, especially in tight, unventilated interior spaces.

Many high-quality mineral spirits like KLEAN-STRIP and Gamblin Gamsol boast odorless or low-odor formulas. This is achieved through advanced purification processes that remove aromatic hydrocarbons, reducing respiratory irritation and dizziness risks. Low-odor spirits allow you to work indoors more comfortably without constantly opening windows or donning harsh protective gear.

Ignoring this factor can lead to headaches, nausea, and lingering respiratory discomfort. Using a high-odor solvent in an enclosed space risks creating an unhealthy atmosphere and forcing breaks or halting projects unnecessarily.

Purity and Chemical Composition

Purity determines a mineral spirit’s strength to clean or thin coatings without damaging surfaces or materials. Impurities, including heavier hydrocarbons or contaminants, can affect drying times, paint texture, and brush longevity.

Brands like PHOENIX and Tusc & Pine StudioSolv emphasize hydrotreated petroleum distillates and purified spirits to deliver liquids free from harmful aromatics and solvents that degrade pigment and bristle quality. These spirits comply with ASTM D4236 standards, meaning they meet strict safety and composition guidelines. Purity influences evaporation rates and solvent power at a molecular level, impacting how smoothly the thinner interacts with oil-based substances.

Using lower purity mineral spirits risks uneven paint finishes, lingering sticky layers, or accelerated degradation of brushes and equipment. Contaminated solvents complicate cleanup and can mar your final results.

Flashpoint and Safety Considerations

Flashpoint refers to the temperature at which mineral spirits release enough vapor to ignite. It’s a defining safety feature for storage and handling, especially around heat sources or in enclosed studios.

Many low-odor spirits, such as Tusc & Pine StudioSolv, boast a higher flashpoint around 144°F, distinguishing them as combustible rather than flammable. This reduces fire hazards significantly during typical use. Flashpoint is controlled by the type and concentration of hydrocarbons present. Higher flashpoint spirits also tend to be less volatile, leading to slower evaporation and safer indoor work conditions.

Ignoring the flashpoint can cause dangerous fire incidents or fumes accumulation. Using spirits without proper fire safety awareness increases risks during storage and application, particularly for professional studios or hobbyists with multiple solvent containers.

Volume and Packaging Options

Volume matters for convenience, cost-effectiveness, and project scale. Whether you’re an artist working on small pieces needing only a few ounces or a contractor thinning dozens of gallons of paint, the packaging choice shapes practicality.

Available sizes vary widely, from PHOENIX’s compact 8.5 fl oz bottles ideal for detailed brush cleaning, to Sunnyside’s multi-pack offering 128 fl oz per can in six-packs suited for bulk needs. Larger volumes reduce frequency of repurchase but increase storage and handling challenges. Smaller bottles favor portability and less waste on infrequent use.

Overlooking volume needs can leave you either running out mid-task or stuck with excess solvent that might degrade before use. Improper storage of large containers also carries risk if safety factors aren’t followed, especially with flammable products.

Intended Use and Specialty Applications

Intended use aligns the solvent’s formula and performance with your specific needs, whether thinning paints, cleaning brushes, or degreasing tools. Not all mineral spirits perform equally across tasks.

For example, Gamblin Gamsol targets professional artists needing gentle thinning and brush cleaning with a safe formula preserving pigment and bristles. Conversely, Rust-Oleum’s product emphasizes reducing brush drag and improving flow for automotive and DIY paint jobs. Some formulations, like Recochem Recordsol, enhance degreasing abilities for tougher grime removal beyond just paint thinning.

Using a solvent not suited to your task risks poor results: strong solvents might strip delicate finishes, while weak ones fail to thin thick paints properly. Matching formula to project safeguards workflow smoothness and final quality.

Environmental and Health Impact

Environmental impact and safety play a growing role in choosing mineral spirits. Low or zero VOC (volatile organic compound) content solvents minimize hazardous emissions and health risks during use and disposal.

Many options like Gamblin Gamsol and Recochem Recordsol highlight low toxicity and VOC compliance. These formulations reduce ecological footprint and exposure to harmful chemicals. Some are even reusable, lowering waste and costs. The chemical balance often involves removing aromatic hydrocarbons and incorporating safer alternatives without sacrificing solvent power.

Neglecting environmental concerns can lead to regulatory troubles, airborne pollution, and health complications including allergies or chemical sensitivities. Using less environmentally friendly spirits not only harms ecosystems but may also limit indoor use or professional workspace approvals.

Frequently Asked Questions

What makes mineral spirits better than other paint thinners?

Mineral spirits stand out due to their balanced solvent power combined with a comparatively safer odor profile. Unlike harsher thinners such as turpentine, mineral spirits effectively dissolve oil-based paints and stains while emitting fewer fumes, making them preferable for indoor use.

A specific advantage is their versatility that ranges from cleansing brushes to thinning paints without damaging surfaces. Brands like KLEAN-STRIP and Gamblin have formulations designed to minimize indoor air pollution and improve user comfort.

As a pro-tip, always use mineral spirits in a well-ventilated area despite their lower odor to prevent long-term respiratory irritation.

Are odorless mineral spirits completely safe to use indoors?

Mineral spirits labeled as odorless or low-odor are formulated to reduce harsh fumes considerably but are not entirely risk-free indoors. They tend to emit fewer volatile organic compounds (VOCs), lessening respiratory and eye irritation compared to traditional solvents.

Products like Gamblin Gamsol and PHOENIX Oil Paint Thinner focus on safer formulas that also protect sensitive users and delicate artwork. However, prolonged exposure can still cause discomfort, so precautions remain essential.

Always wear protective gloves and keep windows open to ensure good airflow while using these spirits in enclosed spaces.

How do I choose mineral spirits for art versus general home improvement?

The intended application heavily influences the choice. For artistic use, look for mineral spirits that maintain color vibrancy and protect delicate brush bristles, such as Gamblin Gamsol or PHOENIX Premium Oil Paint Thinner. These solvents contain additives that preserve pigment integrity and are safer for extended studio use.

For home improvement tasks like paint thinning and degreasing, options like KLEAN-STRIP or Rust-Oleum provide robust cleaning power and reduce brush drag, focusing on efficiency over delicate handling.

Testing a small amount on your specific material before large-scale use can avoid damage or color changes.

What are the environmental considerations when using mineral spirits?

Low-odor mineral spirits tend to have reduced volatile organic compounds (VOCs), a crucial factor in minimizing environmental impact. Some brands, such as Gamblin and Recochem Recordsol, formulate their products to be non-toxic and safer for both users and the environment.

These formulas often carry certifications like ASTM compliance, indicating responsible composition. Careful disposal of mineral spirits is vital to prevent soil and water contamination.

To be eco-friendly, reuse solvents where possible and recycle or discard used spirits according to local hazardous waste regulations.

Can mineral spirits damage brushes or surfaces if used improperly?

Improper usage, such as over-soaking brushes or applying mineral spirits on sensitive finishes, can lead to solvent damage. Some spirits strip natural oils from bristles, causing them to stiffen and deteriorate. Using specialized formulas like PHOENIX Premium Oil Paint Thinner helps protect both natural and synthetic bristles, extending brush life.

Similarly, applying mineral spirits to plastics or finished furniture might cause discoloration or surface softening. Always confirm compatibility with a spot test before widespread application.

Limit exposure time and avoid direct contact with skin, wearing gloves to protect your hands during cleaning or thinning.

Choosing Mineral Spirits That Enhance Your Projects

Selecting the right mineral spirits transforms your cleaning and painting tasks by combining strong solvent power with reduced odor and increased safety. Using a premium product ensures faster drying times and a smoother finish, significantly elevating both the ease and quality of your work. This improvement is vital for indoor or detailed projects where precision matters. For artists,

Maintain safety by using mineral spirits in well-ventilated spaces and wearing gloves to avoid irritation. Opting for products with a high flashpoint reduces fire hazards, while pairing mineral spirits with compatible paint is essential for flawless results and long-lasting finishes.

Last update on 2026-06-24 / Affiliate links / Images from Amazon Product Advertising API