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ACETYL RHEUM RHAPONTICUM ROOT EXTRACT.

Valuable / BLEACHING

Derived from rhubarb, this extract precisely targets hyperpigmentation to significantly brighten skin. It also enhances skin conditioning by reinforcing the barrier and boosting moisture retention.

Skin brightening Skin conditioning Soothing Antioxidant Barrier support

Science

It functions by inhibiting melanogenesis through tyrosinase and tyrosine kinase suppression, thereby regulating melanin distribution. Additionally, it bolsters skin barrier function via filaggrin and involucrin stimulation, providing antioxidant and anti-inflammatory protection.


Research

High confidence
Effective range N/A
Optimal

1%

Key findings

  1. 01 A 1% concentration significantly increased skin brightness (L* value) and reduced pigmentation spots in human trials over 30-60 days. This complex was approximately 6x more effective than placebo at reducing melanin index within 15 days.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 4.5 – 7
0 7 14

Stability

Stable in standard cosmetic emulsions when integrated into the water phase. Stability is compromised in environments with pH above 7.5 due to stilbenoid degradation.

Conflicts

  • Strong oxidizing agents
  • Highly alkaline environments (pH > 8)

Safety

CIR Status
Not reviewed
Max tested
1%
Sensitization risk Low

While the CIR has not specifically reviewed this extract, it is used safely up to 1% in commercial blends and is recognized as a safe skin-conditioning agent by the EU's COSMILE database.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

This ingredient offers precise skin brightening and barrier support, with robust clinical evidence at 1% concentration.


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