Top 8 Best Kojic Acid Body Lotion

of July 2024
1
Best ChoiceBest Choice
Perfect Image Gly + Sal Exfoliating Body Lotion, 8% Glycolic Acid and 2% Salicylic Acid Lotion Enhanced with Green Tea, Papaya, Bearberry, Licorice and Amino Complex
Perfect Image
Perfect Image

10
Exceptional
Checkmark
View on Amazon
2
Best ValueBest Value
QRxLabs Glycolic/Salicylic Acid 10/2 Acne Control Pads with 10% Ultra Pure Glycolic + 2% Salicylic Acid, Allantoin, Vitamins B5, C & E, Calendula Green Tea - Most Effective Treatment Clear Skin
QRxLabs
QRxLabs

9.9
Exceptional
Checkmark
View on Amazon
3
Body Restore Kojic Acid Soap, (Turmeric 2 Pack), with Vitamin C,E, Shea Butter, Collagen, Hyaluronic Acid, Turmeric, Retinol For Dark Spots, All Natural Soap Bar, Paraben Free
Body Restore
Body Restore

9.8
Exceptional
Checkmark
View on Amazon
4
Versed Press Restart Retinol Body Lotion - Cocoa Butter + Squalane Moisturizer for Dry Skin - Firming Body Retinol to Smooth Texture & Brighten Skin - Body Breakout Treatment (6 oz)
Versed
Versed

9.7
Exceptional
Checkmark
View on Amazon
5
Lume Acidified Body Wash - 24 Hour Odor Control - Removes Odor Better than Soap - Moisturizing Formula - SLS Free, Paraben Free - Safe For Sensitive Skin - 8.5 ounce (Pack of 2) - Peony Rose
Lume
Lume

9.6
Exceptional
Checkmark
View on Amazon
6
Body Restore Kojic Acid Soap, (Rosemary 2 Pack), with Vitamin C,E, Shea Butter, Collagen, Hyaluronic Acid, Turmeric, Retinol For Dark Spots, All Natural Soap Bar, Paraben Free
Body Restore
Body Restore

9.5
Excellent
Checkmark
View on Amazon
7
Koji White Kojic Acid & Collagen Body Lotion, Women Gifts Set for Skin Brightening, Moisturizer & Radiant Complexion, Uneven Skin Tone - Vegan, Not Tested on Animals, 8.45 Fl Oz (2 Packs)
Koji White
Koji White

9.4
Excellent
Checkmark
View on Amazon
8
Pure Kojic Acid Skin Brightening Soap for Dark Spot & Glowing Skin, Moisturizing for Face & Body, Acne Scars, Melasma, Uneven Skin Tone with Tea Tree, Coconut Oil, Vegan 2.82 oz (2 Bars)
Koji White
Koji White

9.3
Excellent
Checkmark
View on Amazon
9
Good Molecules Discoloration Correcting Body Treatment - Cream with Tranexamic Acid Ester Salt, LHA, and Niacinamide - Anti-aging Skincare for Body
Good Molecules
Good Molecules

9.2
Excellent
Checkmark
View on Amazon
10
Nasola Kojic Acid Lotion Natural Skin Clarifying for Face & Body with Vitamin C, Niacinamide, Shea Butter, Licorice & Green Tea for Complexion Revitalization, Women & Men
Nasola
Nasola

9.1
Excellent
Checkmark
View on Amazon
11
SeoulCeuticals Korean Kojic Acid Cream Dark Spot Remover + Glycolic Acid + Niacinamide + Cica + HA Moisturizer - Cruelty Free K Beauty Skincare 2oz
SeoulCeuticals
SeoulCeuticals

9.0
Excellent
Checkmark
View on Amazon
12
MESODERM RX Advanced Skin Hydrating Brightening Body Essence, Niacinamide, Kojic Acid, Vitamin C, Hyaluronic Acid, Alpha Hydroxy Acids - Enhance, Smooth, Reduce Dark Spots, Uneven Skin Tone, 150ml.
MESODERM RX
MESODERM RX

8.9
Very Good
Checkmark
View on Amazon
13
APLB Glutathione Niacinamide Body Lotion | LIPO GLUTA NIAC CEN 12.5% 10.14 FL.OZ / Korean Skincare, Long lasting hydration, Revitalize for gentle and improve skin texture through Niacinamide, Improve skin elasticy
APLB
APLB

8.8
Very Good
Checkmark
View on Amazon
14
AmLactin Daily Moisturizing Lotion for Dry Skin  7.9 oz Pump Bottle  2-in-1 Exfoliator - Body Lotion with 12% Lactic Acid, Dermatologist-Recommended (Packaging May Vary)
AmLactin
AmLactin

8.7
Very Good
Checkmark
View on Amazon
15
Pure Kojic Acid Powder (50 Gram), for Skin Whitening Lightening, Even Your Skin Tone & Diminishes the Appearance of Dark Spots, Freckles & Scars, for DIY Soaps, Creams and Serums
Viktairy
Viktairy

8.6
Very Good
Checkmark
View on Amazon
16
Alpha Skin Care Revitalizing Body Lotion with 12% Glycolic AHA, Simple and Effective Multi-Purpose Daily Moisturizer Hydrates and Exfoliates with Anti-Aging, Smoothing Properties
Alpha Skin Care
Alpha Skin Care

8.5
Good
Checkmark
View on Amazon

About Kojic Acid Body Lotion

Click here to learn more about these products.

Perfect Image Gly + Sal Exfoliating Body Lotion, 8% Glycolic Acid and 2% Salicylic Acid Lotion Enhanced with Green Tea, Papaya, Bearberry, Licorice and Amino Complex

EXFOLIATES DEAD SKIN CELLS - With the power of salicylic acid and collagen-stimulating glycolic acid, our skin lotion helps promote healthy pores by removing dead surface skin cells for a more refined and smooth skin texture.. ULTRA-LIGHT FORMULA - Achieve maximum hydration and replenishment with our moisturizing body lotion. This ultra-light formula increases the skin absorption rate, allowing the nutrients of your other topicals to be absorbed more effectively and consistently.. MINIMIZES WRINKLES - Our glycolic acid lotion promotes collagen synthesis and helps increase structural strength within the skin's matrix. This helps minimize the appearance of wrinkles, fine lines, and enlarged pores.. ACHIEVE A YOUTHFUL LOOK - This bha exfoliant and alpha hydroxy lotion promotes tissue health and improves cell rejuvenation. It visibly reduces signs of aging, giving you a more radiant, youthful appearance.. SPA-LIKE RESULTS - Achieve salon and spa-like results from the comfort of your home with Perfect Image skin care products. Our Gly Sal Exfoliating Lotion gives you the power to maintain a more clear, healthy, and natural appearance..

QRxLabs Glycolic/Salicylic Acid 10/2 Acne Control Pads with 10% Ultra Pure Glycolic + 2% Salicylic Acid, Allantoin, Vitamins B5, C & E, Calendula Green Tea - Most Effective Treatment Clear Skin

ACNE CONTROL PADS These pads come fully saturated with a solution containing 10 of pure Glycolic Acid and 2 of medical-grade Salicylic Acid. They unclog pores, control sebum generation and exfoliate the skin, limiting the potential for breakouts and leaving the skin looking clearer and healthier.. BOOSTED WITH VITAMINS B5, C E Powerful antioxidants that will leave your skin fully hydrated and that will help repair photo-damage from UV rays.. CONTAINS ALLANTOIN AND GREEN TEA CALENDULA EXTRACTS Allantoin helps to soothe and protect the skin while Green Tea and Calendula extracts act as antioxidant agents.. PROFESSIONAL NON WOVEN TEXTURED PADS Each jar comes with 50 professional-grade non woven textured pads with a convenient finger notch for easy application..

Body Restore Kojic Acid Soap, (Turmeric 2 Pack), with Vitamin C,E, Shea Butter, Collagen, Hyaluronic Acid, Turmeric, Retinol For Dark Spots, All Natural Soap Bar, Paraben Free

Turmeric Warm and spicy for those who are looking for an intriguing scent. Its earthy aroma appeals to those who may be looking for a sense of nourishment.. Dark Spots Remover Kojic acid assists in hyperpigmentation, mild exfoliation, and antioxidant effects.. Vitamin Packed Soap Vitamin C, Collagen, Retinol, and Vitamin E Provides a range of benefits such as antioxidant protection, collagen synthesis, improved skin texture, to promote overall skin health and radiance. It nourishes and moisturizes the skin, promoting even skin tone, and enhancing skin firmness and elasticity.. Essential In Every Home An ideal soap for daily use, promoting healthier and more beautiful skin.. Travel Convenience Our soap is the perfect travel companion, free from any worries of confiscation wherever you go in the world. Say goodbye to using ineffective body soap or wash from accommodations, as our soap ensures youll have a reliable and effective option always at hand..

Versed Press Restart Retinol Body Lotion - Cocoa Butter + Squalane Moisturizer for Dry Skin - Firming Body Retinol to Smooth Texture & Brighten Skin - Body Breakout Treatment (6 oz)

Retinol Body Lotion - With pure retinol, nourishing cocoa butter, and moisture-replenishing squalane, this retinol body lotion repairs more than dryness. It helps firm skin, smooth texture and brighten dullness.. Skin Tightening Ingredients - The Press Restart skin tightening cream contains encapsulated retinol that gently renews skin, while the moisture-locking ingredients, like cocoa butter and squalane, relieve dryness and make this a firming body lotion.. Non-Greasy Toning Cream - The lightweight formula of this toning cream wont leave you feeling greasy, but it will deliver the retinol results you love for your face, everywhere else. Massage this moisturizing body lotion into dry skin to help refine crepiness on the chest, firm skin around the knees, smooth rough elbows, and leave you radiant from shoulders to toes.. Gentle Body Retinol for Nightly Use - Our moisturizing body lotion is safe and gentle enough to use nightly. We're vegan, Climate Neutral Certified, cruelty-free, and do not use parabens, silicones, sulfates, or artificial fragrances.. High Performance, Not Hype - High-performance skin firming and tightening lotion with a purpose. With clean, proven ingredients at skin-changing levels, our body lotion for women delivers results that warrant restocking..

Lume Acidified Body Wash - 24 Hour Odor Control - Removes Odor Better than Soap - Moisturizing Formula - SLS Free, Paraben Free - Safe For Sensitive Skin - 8.5 ounce (Pack of 2) - Peony Rose

POWERED BY MANDELIC ACID - Our acidified cleansing formula supports skin that smells better longer.. KNOCK OUT EXISTING ODOR - Lume Acidified Body Wash is clinically proven to remove odor. CONTROL ODOR FROM SHOWER TO SHEETS - Our body wash doesnt just remove odor, it is also clinically proven to control odor for 24 hours after you step out of the shower.. SERIOUSLY SAFE FOR ALL YOUR PARTS - Developed by a gynecologist, Lume Acidified Body Wash was formulated without SLS and SLES, phthalates, and parabens to safely cleanse all your odor prone areas. For outrageously effective odor control, follow with any Lume Whole Body Deodorant.. PEONY ROSE - Light, romantic, and laced with the sheer scent of delicate blossoms and citrus bergamot..

Body Restore Kojic Acid Soap, (Rosemary 2 Pack), with Vitamin C,E, Shea Butter, Collagen, Hyaluronic Acid, Turmeric, Retinol For Dark Spots, All Natural Soap Bar, Paraben Free

Rosemary A strong woody freshness comes with our Rosemary soap, giving it a distinct scent of freshly crushed rosemary leaves. It brings clarity to the senses is reminiscent of the lush gardens and the countryside.. Dark Spots Remover Kojic acid assists in hyperpigmentation, mild exfoliation, and antioxidant effects.. Vitamin Packed Soap Vitamin C, Collagen, Retinol, and Vitamin E Provides a range of benefits such as antioxidant protection, collagen synthesis, promotes even skin texture, tone, and overall skin health and radiance. It nourishes and moisturizes the skin to enhance skin firmness and elasticity.. Essential In Every Home An ideal soap for daily use, promoting healthier and more beautiful skin.. Travel Convenience Our soap is the perfect travel companion, free from any worries of confiscation wherever you go in the world. Say goodbye to using ineffective body soap or wash from accommodations, as our soap ensures youll have a reliable and effective option always at hand..

Koji White Kojic Acid & Collagen Body Lotion, Women Gifts Set for Skin Brightening, Moisturizer & Radiant Complexion, Uneven Skin Tone - Vegan, Not Tested on Animals, 8.45 Fl Oz (2 Packs)

SPECIAL FORMULA Our moisturizer visibly even your skin tone and restore the radiance to your skin after several uses. Special formula empowered with kojic acid and collagen for an amazing natural skin brightening and glowing skin. Arouse your friends curiosity taking care of your skin.. NATURAL INGREDIENTS BODY LOTION This high-quality moisturizer body lotion is paraben free, PH Balanced, with no artificial color. Professional skin care line for all skin types. Especially beneficial for moisturizer on hands, neck, body. Gives you a juvenile and vigorous look.. MOISTURIZING SKIN CARE FOR WOMEN Besides being an efficient for face our moisturizer cream is an amazing skin care tip to reduces the appearance of dark spot on your body for a youthful look Everyone will ask you for a skin care tip. Gentlemen can also use it to care for their skin.. PERFECT USE ON DAILY BASIS Perfect for your daily after bath skin routine. It is the original skin care. Safe to use. Feel the freshness of a new day on your skin with these no ordinary skin care products. Let your skin shine, look healthy and in the springtime of life.. BUY WITH CONFIDENCE - Product designed with first-class ingredients for your complete satisfaction..

Pure Kojic Acid Skin Brightening Soap for Dark Spot & Glowing Skin, Moisturizing for Face & Body, Acne Scars, Melasma, Uneven Skin Tone with Tea Tree, Coconut Oil, Vegan 2.82 oz (2 Bars)

GET BACK THAT FLAWLESS, VIBRANT GLOW Koji White Kojic acid soap improve skin radiance. KOJIC ACID CONCENTRATED FORMULA A natural AHA that works to brighten the appearance of skin.. MOISTURIZE NOURISH Rich texture with coconut oil and hyaluronic acid which help to nourish and hydrate the skin and feeling fresh and glowing. GOOD FOR DAILY USE Gentle formula that made with natural active ingredients.. NOT TESTED ON ANIMALS, NO SLS, PARABEN FREE The Koji White soap is ideal for daily use. Being natural, it makes an excellent addition to your everyday beauty care routine..

Good Molecules Discoloration Correcting Body Treatment - Cream with Tranexamic Acid Ester Salt, LHA, and Niacinamide - Anti-aging Skincare for Body

BRIGHT, EVEN-TONED SKIN FROM HEAD TO TOE Refine tone and improve texture all over Embrace newfound confidence with the Good Molecules Discoloration Correcting Body Treatment specially formulated to encourage a reduction in the appearance of discoloration.. TARGET STUBBORN DISCOLORATION Formulated with tranexamic acid ester salt to target hyperpigmentation on the chest, neck, arms, back, and thighs This cream also contains Capryloyl Salicylic Acid LHA to exfoliate dead skin cells for smoother, brighter skin.. HYDRATING LIGHTWEIGHT BODY MOISTURIZER Non-greasy and lightweight, this formula contains aspergillus and saccharomyces ferments to help soothe, moisturize, and brighten. It also contains niacinamide, arginine, and jojoba seed oil to support hydrated, healthy-looking skin. PERFECT ADDITION TO YOUR BEAUTY REGIMEN Treat yourself to nourishing moisture and target problem areas with this hydrating cream. Apply to areas of concern in the morning and at night. Avoid direct eye contact.. GENTLE ENOUGH FOR ALL SKIN TYPES This body treatment is powerful enough to bring results and gentle enough for daily use. Our formula has a pH of 4.4. It is vegan and fragrance-free..

Nasola Kojic Acid Lotion Natural Skin Clarifying for Face & Body with Vitamin C, Niacinamide, Shea Butter, Licorice & Green Tea for Complexion Revitalization, Women & Men

ENRICHED WITH NATURAL OCCURRING PLANT-BASED INGREDIENTS - Nasola Kojic Acid Lotion is a safe, gentle, and effective way to diminish skin discoloration, sun-induced marks, blemishes, and other complexion inconsistencies, revealing a radiant and luminous skin.. REDUCE THE VISIBILITY OF DISCOLORATION SUN-INDUCED MARKS - Infused with Kojic Acid, Vitamin C, Niacinamide, Shea Butter, Licorice, and Green Tea. These naturally occurring and plant-based ingredients help rejuvenate and reduce the visibility of discolorations and blemishes as a result of sun or environment damage.. MOISTURIZE GET YOUNGER-LOOKING SKIN - Experience a radiant, youthful glow with Nasola Kojic Acid Lotion. This gentle, safe, natural moisturizer and Shea Butter Jojoba Oil infused body lotion revitalizes and refines the skin for a radiant complexion.. CLEAR AGE AND ACNE SPOTS - Get a healthy glow This effective skin lotion reduces the visibility of complexion inconsistencies including age spots, acne scars, blemishes, and other skin imperfections.. WHOLE BODY PERFECTION - Many users notice a radiant complexion in a matter of a few weeks. The combination of Kojic Acid, Vitamin C, Niacinamide, Shea Butter, and Licorice work together to provide optimal results..

SeoulCeuticals Korean Kojic Acid Cream Dark Spot Remover + Glycolic Acid + Niacinamide + Cica + HA Moisturizer - Cruelty Free K Beauty Skincare 2oz

THIS HYPERPIGMENTATION TREATMENT harnesses the lightening ability of multiple proven ingredients to even skin tone, brighten the complexion and improve the appearance of aging, acne scarred or sun damaged skin. GUARANTEED TO BRIGHTEN skin tone, this K beauty Kojic acid cream will fade unwanted dark spots and lighten hyperpigmentation sun spots for more youthful, vibrant-looking skin. EXTREMELY EFFECTIVE SKIN discoloration treatment contains 52 organic 98 naturally-derived plant extracts to lighten brighten, while Glycolic acid gently exfoliates to reveal new, healthier skin. FOR VISIBLE RESULTS this dark spot cream also contains Niacinamide Licorice root hydrating Hyaluronic acid to effectively address uneven skin tone due to melasma aging for a brighter, more youthful complexion. SEOULCEUTICALS PROMISE All our Korean skincare products are formulated with potent, skin-friendly Korean-sourced key ingredients that are proven to work without irritating skin. Always Cruelty-FREE, Paraben-FREE, Sulfate-FREE and Phthalate-FREE.

MESODERM RX Advanced Skin Hydrating Brightening Body Essence, Niacinamide, Kojic Acid, Vitamin C, Hyaluronic Acid, Alpha Hydroxy Acids - Enhance, Smooth, Reduce Dark Spots, Uneven Skin Tone, 150ml.

MESODERM RX Offers you the most Advanced Formulation of a brightening body cream, that can give you bright, soft and radiant looking skin. It effectively reduces brown spots and illuminates your complexion that exudes radiance.. EVEN TONED BRIGHTENED SKIN MESODERM RX Advanced BodyEssence is a skin brightening body lotion that is uniquely formulated to brightening your pigmentation, This process is regulated, therefore reducing the formation of dark spotsscars, evening out your skin tone for a lighter and brighter complexion that is more RADIANT than ever.. ADVANCED FORMULATION MESODERM RX Advanced BodyEssence Skin Brightnening Body Lotion is gentle enough for sensitive skin types to lighten and brighten dark areas of the body. Specifically developed to fade skin discoloration while nourishing the skin with Anti Aging ingredients to reduce the signs of aging skin.. POWERFUL INGREDIENTS A Supreme formulation of brightening Anti-aging ingredients for RESULTS you can see and feel. HEALTHY SKIN Paraben and fragrance-free MESODERM RX Advance BodyEssence Skin Brightening Body Lotion uses Advanced ingredients consisting of vitamins and nutrients with clinically-proven results to provide YOU with healthy, younger-looking skin.. SUITABLE FOR ALL SKIN TYPES MESODERM RX Advanced BodyEssence Skin Brightening Body Lotion is recommended for all skin types, except sensitive skin use our Intimate Cream, and is effectively suitable for women and men. Refrain from usage on the face or neck area.. MAXIMIZE THE BENEFITS Apply a thin layer of MESODERM RX Advanced BodyEssence Skin Brightening Body Lotion to the affected areas. Skin must be dry and clean. Apply at night time before bed. Use at least SPF 50 daily during the daytime to optimize and maintain the results obtained.. PROUDLY DEVELOPED PRODUCED IN THE USA.

APLB Glutathione Niacinamide Body Lotion | LIPO GLUTA NIAC CEN 12.5% 10.14 FL.OZ / Korean Skincare, Long lasting hydration, Revitalize for gentle and improve skin texture through Niacinamide, Improve

BASIC SUMMARY Glutathione Niacinamide Body Lotion LIPO GLUTA NIAC CEN 12.5 Glutathione 1,000ppm, Niacinamide 1,000ppm, Centella Asiatica Extract 12.3, combined with Centella 3x Complex. CENTELLA 3X COMPLEX The following components of Madecassic Acid, Asiaticoside, and Asiatic Acid come from a leaf called Centella asiatica.. PRESERVE THE MOISTURE Infused with Hyaluronic Acid and Beta Glucan.. SHINE AND GLOW Infused with Vitamin C, Niacinamide Vitamin B3 and Nicotinamide. ALLEVIATE FOR SENSITIVE SKIN Solanum Melongena Eggplant extract.

AmLactin Daily Moisturizing Lotion for Dry Skin 7.9 oz Pump Bottle 2-in-1 Exfoliator - Body Lotion with 12% Lactic Acid, Dermatologist-Recommended (Packaging May Vary)

More than a moisturizer From the 1 dermatologist-recommended moisturizer brand with lactic acid comes the celebrated daily lotion with the powerful ability to leave rough, dry skin soft and smooth. 2-in-1 exfoliator and moisturizing lotion AmLactin uses lactic acid to boost healthy skin renewal through gentle exfoliation while providing intense hydration, resulting in restored, radiant skin. Clinically-supported concentration A clinical trial on lactic acid showed that the most significant skin improvements were achieved with 10 lactic acid or higher AmLactin Daily contains 12 to ensure potent skin care. AmLactin Daily is non-greasy, fragrance-free and paraben-free suitable for use as a face moisturizer, hand lotion andor body lotion packaging may vary. Simplify your skin care regimen with Amlactins selection of exfoliating lotions and creams ideal for restoring skin prone to eczema or psoriasis.

Pure Kojic Acid Powder (50 Gram), for Skin Whitening Lightening, Even Your Skin Tone & Diminishes the Appearance of Dark Spots, Freckles & Scars, for DIY Soaps, Creams and Serums

Whiten and Brighten the Skin Kojic acid powder is a natural mild inhibitor of pigment formation, it works to stop the production of melanin in your skin. Give you another level of bright and shiny skin.. Natural and Safe Kojic acid was originally found during the fermentation process of malting rice for use in the manufacture of sake. Viktairy Kojic powder is a 100 NATURAL skin lightening product. Safe for face and body use.. Diminishes Scars and Spots Kojic Acid Powder works with the skin's natural renewal process to slough off damaged, thickened, discolored skin. Powerful, natural ingredients reduce the appearance of dark spots, age spots, hyperpigmentation, melasma, freckles, red marks, scars, and other signs of sun damage. Promote a balanced, more even skin tone.. DIY Economical Skincare Formulations Kojic acid is the main whitening ingredients in brighteners. Viktairy kojic powder for skin lightening can be added to your lotion, serum, or soap to create a custom formulation at a fraction of the cost of name brand products.. How to Use Mix 1 tsp kojic acid powder for a 1-2 solution with 4-8 oz water-based lotions and serums, and allow them to dissolve completely. Viktairy pure kojic acid powder works for all skin types.. Worry Free Are you still worried about not knowing how to activate kojic acid powder Our product comes with very detailed instructions, and our experts are here for you if you have any questions..

Alpha Skin Care Revitalizing Body Lotion with 12% Glycolic AHA, Simple and Effective Multi-Purpose Daily Moisturizer Hydrates and Exfoliates with Anti-Aging, Smoothing Properties

Anti-aging skin care Our body lotion is formulated with the optimal balance of 12 Glycolic Alpha Hydroxy Acid AHA and a pH level of 4.0 AHA encourages reduces the appearance of lines and wrinkles. Radiant skin Our anti-aging creams exfoliating formula gently lifts away dead skin cells so new, healthy skin can emerge your skin will immediately feel smooth and fresh over time, you will see a more radiant, even skin tone. Powerful ingredients Paraben and fragrance-free Alpha Skin Care uses essential, natural ingredients with clinically-proven results to reveal healthy, younger-looking skin. Packed with vitamins nutrients Leave your skin feeling soft and smooth vitamins and nutrients combined with anti-aging ingredients enhance the benefits youll see and feel. Directions Apply to desired areas of clean skin, and do not rinse off may be used morning and evening for daytime use, we recommend also applying a sunscreen first-time users should do a patch test.