Common Name(s): 4',5,7-trihydroxyflavone,versulin,apigenol

CAS Number: 520-36-5

DESCRIPTION

What It Does: Provides gaba-a receptor-mediated skin calming and anti-inflammatory activity from chamomile.

Why It's Used: The calming flavone — apigenin's documented gaba-a agonism provides the pharmacological basis for chamomile's well-documented calming activity, providing the most evidence-based neurocosmetic flavonoid mechanism.

How It Works: Apigenin binds gaba-a receptor benzodiazepine site (ic50 ~4μm) for calming activity. cox and 5-lox inhibition provides anti-inflammatory activity. anti-proliferative via cdk2 and cdk6 inhibition. uv-absorbing chromophore provides mild photoprotection. very low water solubility — requires formulation.

Typically Found In: Sensitive skin calming products,chamomile formulas,anti-anxiety skincare

TECHNICAL DETAILS

Primary Category: Active ingredient – soothing / anti-inflammatory

Secondary Functions: Redness reduction,anti-inflammatory,calming

Application Areas:

Typical Concentration Range: 0.01%–2%

SOURCING & ETHICS

Vegan Status: Yes – from matricaria recutita or anthemis nobilis flowers

Halal Status: Yes

Source Notes: Plant-derived extract or synthetic.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low

Comedogenicity Rating: 0/5 – non-comedogenic

Sensitivity Concerns: Non-irritating; ideal for reactive and sensitive skin.

Safe for Sensitive Skin: Yes – particularly recommended for sensitive skin

SAFETY & COMPATIBILITY

Safety Profile: Excellent safety profile. ewg score: 1.

Works Well With: Ceramides,panthenol,allantoin,hyaluronic acid,centella asiatica

Avoid Combining With: No significant incompatibilities

SCIENTIFIC NOTE

Apigenin's gaba-a benzodiazepine site binding (same binding site as valium/diazepam) was first demonstrated by viola et al. (1995) confirming the pharmacological mechanism behind chamomile's traditional calming use. apigenin provides partial benzodiazepine site agonism rather than full agonism like pharmaceutical benzodiazepines — providing calming without sedative or addictive properties, explaining chamomile's safety advantage over pharmaceutical anxiolytics.

Last Verified: ##########

Primary Sources: Cosing database,viola et al. apigenin gaba-a binding study