Acids

Kojic Acid: Comedogenic Rating & Safety Profile

Also known as: Kojic Dipalmitate

A fungal-derived tyrosinase inhibitor that fades pigmentation. A gentler alternative to hydroquinone.

Comedogenic

0/5

Safe

0 = won't clog pores · 5 = highly pore-clogging

Irritancy

2/5

Low Risk

0 = inert · 5 = often irritating

Function

Acids

Pregnancy

Generally considered safe

Vegan

Typically yes

Also Known As

Kojic Dipalmitate

Quick verdict

Kojic Acid is a acid with a safe comedogenic profile (0/5) and low risk irritancy (2/5). A fungal-derived tyrosinase inhibitor that fades pigmentation. A gentler alternative to hydroquinone.

What is Kojic Acid?

Kojic acid is a fungal-derived compound originally identified in koji, the rice mould used to make sake and miso. It inhibits tyrosinase, the enzyme that catalyses melanin production in skin cells, making it an effective ingredient for fading hyperpigmentation, melasma and post-inflammatory dark spots. It is often paired with niacinamide and vitamin C for synergistic brightening.

Comedogenic Rating: What 0/5 Means for Your Skin

Kojic acid is rated 0/5 comedogenic.

Benefits for skin

Fades pigmentation gradually
Antioxidant action
Often paired with niacinamide and Vitamin C for synergy

Potential side effects & who should avoid it

Kojic acid has a 2/5 irritancy rating. Some users experience stinging or contact dermatitis, particularly with concentrations above 2% or with daily long-term use. Sun sensitivity increases — daily SPF is essential. Pregnant or breastfeeding users should consult a doctor before use.

Best for

Pigmented skin
Melasma
PIH

Avoid if

Sensitive skin (test first)

How to use Kojic Acid safely

1–2% in a serum, applied morning and/or evening. Pair with niacinamide and vitamin C for amplified results. Daily SPF 30+ is essential. Discontinue if irritation develops.

Commonly found in

Kojic acid is in brightening serums, soaps and creams, particularly in K-beauty and J-beauty pigmentation lines.

Found Kojic Acid in your skincare?

Paste the full ingredient list into our INCI Analyser to see how this ingredient interacts with everything else in the formula.

Frequently asked questions

Is kojic acid comedogenic?

No — 0/5.

Is kojic acid safe for sensitive skin?

Use with caution. Patch test first and discontinue if irritation develops.

Can I use kojic acid every day?

Yes, in moderate concentrations. Some sources recommend cycling on and off to reduce irritation risk.

Is kojic acid better than hydroquinone?

Kojic acid is gentler and more accessible; hydroquinone is more potent but restricted in many markets.

Other acids to know

Retinol

A Vitamin A derivative that accelerates cell turnover, boosts collagen and is the gold-standard ingredient for reducing wrinkles and acne.

Salicylic Acid

An oil-soluble exfoliant that penetrates into pores to dissolve sebum, dead skin and the plugs that cause blackheads and acne.

Glycolic Acid

The smallest AHA molecule, derived from sugarcane. It exfoliates the surface of the skin to reveal smoother, brighter, more even-toned skin.

Benzoyl Peroxide

An over-the-counter antibacterial that kills C. acnes bacteria and reduces inflammation. Often the first-line treatment for inflammatory acne.

Want the full picture on pore-clogging ingredients? Read our complete guide to comedogenic ingredients for the dermatology research behind the 0–5 scale and the full list of high-risk ingredients to avoid.

Sources

Written by ScanSkinAI Cosmetic Science Team · Last updated June 2026

This information is for educational purposes only. Always patch-test new products and consult a dermatologist if you have specific skin concerns.