Hexyl nicotinate is a lipophilic ester of nicotinic acid (niacin) used topically as a rubefacient and vasodilator; it penetrates the skin and increases local blood flow, and is sometimes used as a model penetrant in skin permeation research. In cosmetics it may be included for its warming, circulation-stimulating effect.
| Reported effect | How often | Notes |
|---|---|---|
Transient skin erythema (redness/flushing) | Common | Expected pharmacological effect from local vasodilation; usually mild and short-lived |
Warmth, tingling or burning sensation | Common | Localized sensory response at application site, typically resolves within minutes to hours |
Itching or mild irritation | Uncommon | May occur at higher concentrations or on sensitive/compromised skin |
Contact dermatitis / allergic sensitization | Rare | Reported infrequently; patch testing advised if reaction suspected |
Systemic flushing or hypotension | Very rare | Possible only with extensive application or high doses leading to systemic absorption |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.