Ascorbic Acid

Low Risk

Also known as:Vitamin CL-Ascorbic AcidLAA

Pregnancy Safe Fungal Acne Safe

Ascorbic acid (L-ascorbic acid) is the purest and most potent form of vitamin C used in skincare. It is a powerful antioxidant that neutralises free radicals, inhibits melanin synthesis to brighten the complexion, and stimulates collagen production. It is unstable and oxidises quickly, requiring careful formulation at a low pH.

Benefits

antioxidantbrighteningcollagen stimulationanti-aginghyperpigmentation

How to Use

Best used in the AM under SPF — vitamin C boosts SPF efficacy and fights UV-induced free radicals. Effective range is 10–20%. Look for formulas with pH below 3.5 for maximum absorption. Stabilise with Vitamin E and Ferulic Acid. Can oxidise (turns orange/brown) — discard when this happens.

Works Well With

Vitamin EFerulic AcidSPFHyaluronic AcidNiacinamide

Potential Concerns

unstable — oxidises in air/lightmay sting at low pH

Skin Type Guide

Works well for

OilyCombinationNormal

Use with caution

Sensitive

ℹ️

Disclaimer: Ingredient information on Skinuity is for educational purposes only and does not constitute medical or dermatological advice. Always consult a qualified professional if you have skin concerns. Sources: EWG Skin Deep, EU CosIng, NIH PubChem, and published dermatological literature.