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RHODODENDRON MUCRONULATUM FLOWER EXTRACT.

Valuable CAS - / ANTIOXIDANT, ASTRINGENT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SKIN PROTECTING

Rhododendron Mucronulatum Flower Extract is a botanical active recognized for its significant antioxidant capacity, offering protection against oxidative stress and mitigating signs of cellular aging. It functions as a versatile skin conditioning agent, contributing to skin protection and emollient benefits across various skin types.

Summary

Antioxidant Astringent Skin Conditioning Emollient Skin Protecting

Science

Mechanism of Action

This extract primarily functions as an antioxidant by markedly reducing hydrogen peroxide-induced cellular damage, diminishing intracellular reactive oxygen species (ROS), and combating oxidative stress-induced senescence within human dermal fibroblasts. Its action involves robust electron donation and direct radical scavenging. Furthermore, research indicates its ability to inhibit enzymes such as α-amylase, α-glucosidase, and angiotensin-converting enzyme (ACE), suggesting broader biological activities beneficial for skin health.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Markedly reduced hydrogen peroxide-induced cell damage, intracellular reactive oxygen species (ROS), and oxidative stress-induced senescence in human dermal fibroblasts, suggesting significant antioxidant and anti-aging effects.
  2. 02 A water extract exhibited 97.5% Electron Donation Ability (EDA) and demonstrated superior antioxidant activity (evaluated by ABTS radical decolorization and antioxidant protection factor) compared to a 60% EtOH extract, which showed 89.7% EDA.
  3. 03 Crude purified fractions from the ethyl acetate extract, at 40 ppm, showed more than 90% DPPH radical scavenging activity.
  4. 04 Water extract showed 67.6% ACE inhibitory activity, while a 60% EtOH extract showed 46.7% ACE inhibitory activity.
  5. 05 Phenolics (200 μg/mL from ethanol extract) inhibited α-glucosidase by 44%, and phenolics (50-200 μg/mL from water extract) inhibited α-amylase by 37-88%.

Transparency

Dusting Analysis

Not commonly dusted

The current research data does not suggest that Rhododendron Mucronulatum Flower Extract is commonly 'dusted' in cosmetic formulations. Efficacy has been demonstrated with various extract types and concentrations in specific assays, without indicating a threshold for ineffective usage based on an artificially low concentration.

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Unknown

All parts of Rhododendron species contain grayanotoxin, a toxic compound if ingested, which can cause central nervous system overstimulation. This toxicity is related to oral consumption and has not been specifically evaluated for topical cosmetic application, thus distinguishing its safety profile for external use.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

With robust in vitro evidence for potent antioxidant and anti-aging effects in human dermal fibroblasts, Rhododendron Mucronulatum Flower Extract stands as a valuable botanical ingredient for advanced, protective skincare formulations.

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