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Panthenol (Pro-Vitamin B5)

PANTHENOL

The soother — a humectant that calms irritated, freshly-exfoliated, or barrier-damaged skin.

antistatichair conditioningskin conditioningCAS 81-13-0 / 16485-10-2

Why it works

Panthenol converts in skin to pantothenic acid, needed for the lipid synthesis that rebuilds the barrier. It hydrates, measurably accelerates recovery from irritation, and reduces redness and itch — the reason it appears in everything from serums to wound creams.

Concentration matters

Typically 1–5%; the studied range.

The evidence, by concern

Dryness

Good evidence

Proven hydrator and barrier-recovery aid

How sure are we
good
How much it helps
modest but real
Do studies agree
mostly agree

Controlled studies show panthenol improves hydration and speeds barrier recovery after irritation (measured as reduced water loss). A dependable supporting ingredient, especially alongside strong actives like retinoids and acids.

Redness

Good evidence

Calms irritation-related redness

How sure are we
good
How much it helps
subtle
Do studies agree
mostly agree

Dexpanthenol formulations reduced experimentally-induced irritation and redness in controlled settings. Modest effect, excellent tolerability — a good de-escalation ingredient when your routine has gone too far.

Safety, without the fear

Anchored to regulatory assessments — not hazard lists. Dose makes the poison; these are the conclusions at real-world cosmetic use.

CIR · Cosmetic Ingredient Review

CIR assessed panthenol as safe as used in cosmetics; adverse reactions are rare.

Source →
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