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Post-sunburn repair ingredients

Cosmetic ingredients within 48 hours of UV damage, for redness and barrier loss. Evidence-based traffic light for each.

27 ingredients in database · 21 with tier A/B evidence · 22 safe in pregnancy

All ingredients in this category

27 ingredients

Highest-evidence picks

Hyaluronic Acid

Natural polysaccharide that binds water up to 1000 times its own weight. Topical application creates a surface humectant effect without dermal penetration.

Glycerin

The simplest trihydric alcohol and one of the most common humectants in cosmetics. Draws water from the environment and retains it in the stratum corneum.

Colloidal Oatmeal

Finely ground oat flour with anti-inflammatory, moisturizing, and barrier properties. FDA-approved as an OTC skin protectant. Avenanthramides are the active anti-inflammatory compounds.

Niacinamide

Vitamin B3 form with a wide action spectrum: brightens pigmentation, strengthens the barrier, minimizes pores, and reduces sebum production.

Zinc Oxide

Broad-spectrum mineral UV filter (UVA + UVB). Acts as a physical screen, reflecting and scattering ultraviolet light. Also has anti-inflammatory and drying properties.

Panthenol (Provitamin B5)

Alcohol analogue of pantothenic acid. Penetrates skin and converts to pantothenic acid, required for coenzyme A synthesis. Accelerates healing and reduces irritation.

What to know

UV-B sunburn (290 to 320 nm) peaks at 12 to 24 hours after exposure. Histology shows scattered «sunburn cells» (apoptotic keratinocytes), dermal vasodilation, infiltrate of neutrophils and lymphocytes, release of prostaglandins (PGE2) and interleukins that drive erythema, pain, and oedema. UV-A contribution adds deeper dermal damage that does not produce immediate burn but accelerates photoaging and pigmentation. Severe burns (Fitzpatrick I to II with prolonged unprotected exposure) progress to blistering within 24 to 48 hours and warrant medical assessment.

First-aid window is the first 6 hours. Cool compresses or a 15-minute lukewarm shower lower skin temperature and reduce the inflammatory cascade. Topical NSAIDs (diclofenac 1%) and oral ibuprofen 400 to 600 mg started within 6 hours reduce pain and oedema with RCT support. Avoid petrolatum-heavy occlusives on hot inflamed skin – they trap heat and worsen symptoms. Light humectant lotions with glycerin and hyaluronic acid feel better and absorb without trapping warmth.

Hours 12 to 72 are repair window. Aloe vera gel (pure, not the green dyed kind) has weak but real anti-inflammatory data; cooling effect is part of the relief mechanism. Panthenol 5% accelerates re-epithelialisation and reduces erythema in clinical trials on post-UV skin. Centella asiatica extract calms inflammation. Niacinamide 4% rebuilds barrier function and has emerging data on reducing UV-induced inflammation when applied within 24 hours. Vitamin E (tocopherol) topically may marginally reduce UV-induced damage if applied soon enough; oral vitamin C plus E has RCT support for raising minimal erythema dose with sustained intake.

Days 3 to 7: skin enters desquamation. Ceramide-rich moisturisers (3:1:1 ratio) restore the barrier as peeling sheets release. Colloidal oatmeal helps with itch during this phase.

Hard avoid for the first 2 weeks: AHA, BHA, vitamin C above 10%, retinoids, benzoyl peroxide, exfoliating scrubs, fragranced products. UV exposure on top of healing sunburn massively raises post-inflammatory hyperpigmentation risk – mineral SPF and shade discipline for at least 4 weeks.

Frequently asked

How many post-sunburn repair ingredients are in the Evigrade database?

Evigrade currently tracks 27 ingredients in the «post-sunburn repair» category. Of those, 21 carry evidence tier A or B.

Which post-sunburn repair ingredients are safe during pregnancy?

22 ingredients in this category are flagged as safe during pregnancy at typical cosmetic concentrations. Always confirm the choice with an OB-GYN.

Which ingredients suit sensitive skin?

26 ingredients in this category show both low irritation potential and low allergen risk, making them safe even for reactive and sensitised skin. A patch test is still advisable before first use.

How should I start using ingredients from this category?

Start with a single high-evidence ingredient (tier A or B) at a low concentration, 2–3 times per week. After 2–3 weeks without reaction, frequency can be increased. Do not introduce two new actives at once – if skin reacts, you won't know which one caused it.