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NICOTINYL ALCOHOL.

Questionable CAS 100-55-0 / TONIC

Nicotinyl Alcohol is a water-soluble niacin derivative known for its skin conditioning properties, effectively smoothing rough, dry, or flaky skin and enhancing its suppleness. While it can promote increased blood flow to the skin, its topical application frequently leads to transient facial flushing and redness.

Skin Conditioning Vasodilator

Science

This ingredient primarily functions by inducing vasodilation, the widening of blood vessels in the skin. This physiological response is mediated through the release of prostaglandins, notably prostacyclin (PGI2), and nitric oxide, thereby improving cutaneous microcirculation. Furthermore, Nicotinyl Alcohol acts as a water-soluble conditioning agent, enhancing skin texture and suppleness.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

No data available to indicate this ingredient is commonly 'dusted' or used at ineffective levels in cosmetic formulations.


The Formula

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Appears as a crystalline solid that readily dissolves in water, alcohol, and ether. Exposure to heat or moisture may compromise its stability and cause degradation.


Safety

CIR Status
Not reviewed
Sensitization risk Moderate

Nicotinyl Alcohol, a niacin derivative, is recognized by the FDA for its tartrate salt in pharmaceutical applications (vasodilator, hypolipidemic). A common and often bothersome side effect upon topical use is transient facial flushing, warmth, and redness. Caution is advised for individuals with peptic ulcers, liver disease, gout, or known allergies to niacin. Its safety during pregnancy or breastfeeding has not been definitively established, and no specific CIR or SCCS safety assessment for cosmetic use was found.


Your Skin

No Normal
Yes Dry
No Oily
No Sensitive
Irritancy Moderate
Comedogenicity Unknown

Our Assessment

Questionable

Nicotinyl Alcohol offers skin conditioning benefits, particularly for dry skin, and may enhance microcirculation, but its common side effect of facial flushing and lack of specific cosmetic safety assessments warrant careful consideration.


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