Vitamin C and potassium hydroxide
Keep them apart
Use them at different times of day with vitamin C first, because mixing them makes the vitamin C spoil and stop working. Potassium hydroxide ruins the acid balance that vitamin C needs to stay fresh and active on your skin. You can easily fix this by applying them hours apart or on separate days.
Vitamin C products
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Olay
Super Serum
€24.90
-
Charlotte Tilbury
Charlotte's Magic Cream
€181.72
-
RoC
Retinol Correxion Deep Wrinkle Night Cream
€32.89
-
Paula's Choice
1% Retinol Treatment
€57.00
- Summer Fridays Jet Lag Mask
-
Mad Hippie
Vitamin C Serum
€49.00
- Eve Lom Renewal Treatment Oil
-
ZO Skin Health
Exfoliating Polish
€155.00
-
CeraVe
Skin Renewing Vitamin C Serum
€19.99
-
Eucerin
Anti-Pigment Dual Serum
€28.79
-
RoC
Retinol Correxion Deep Wrinkle Serum
€32.99
- iS Clinical Cleansing Complex
Potassium hydroxide products
- Glytone Mild Gel Cleanser
Questions and answers
Can you use vitamin C and potassium hydroxide together?
Keep vitamin C and potassium hydroxide apart because combining them can cause rapid breakdown of the vitamin C.
Which goes first, vitamin C or potassium hydroxide?
Keep vitamin C and potassium hydroxide apart in your routine because combining them can cause rapid breakdown of the vitamin C.
Are vitamin C and potassium hydroxide good for sensitive skin?
Keep vitamin C and potassium hydroxide apart because they counteract each other and destabilize the formula. Lovi rates the combination as poor for sensitive skin due to potential irritation from high pH bases.
Research on vitamin C and potassium hydroxide
Stability, transdermal penetration, and cutaneous effects of ascorbic acid and its derivatives
Effects of ascorbic acid on gingival melanin pigmentation in vitro and in vivo
Ascorbic Acid Treatments as Effective and Safe Anti-Aging Therapies for Sensitive Skin
Efficacy of ethyl ascorbyl ether-containing cosmetic cream on blue light-induced skin changes
Moisturizing potentials of ascorbyl palmitate and calcium ascorbate in various topical formulations
Liposomal formulation of a vitamin C derivative: a promising strategy to increase skin permeability
Treatment with Ascorbyl Glucoside-Arginine Complex Ameliorates Solar Lentigos
Behind this pairing advice
Lovi checks every pairing with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.
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Co-founder, Medical Director
Cosmetic chemist, cosmetologist, aesthetic products developer
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Co-founder, CEO and CTO
PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex
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Dr. Sofía Perea Pérez, MD, MSc
Medical Board
Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine
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Medical Board
Specialist dermatologist, MBBS, MD, IFAAD
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Medical Board
Cosmetic chemist, SCS, IFSCC member
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Medical Board, Medical Advisor
Dermatology MD
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Elina Nazarenko, MD
Medical Board
Dermatology and diagnostic consultant
-

Victoria Derkova, MS
Medical Board
Cosmetic chemist, cosmetic development technologist
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