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Moumoujus

ROSA RUGOSA STEM EXTRACT.

Valuable CAS 92347-25-6 / HUMECTANT, SKIN CONDITIONING, SKIN PROTECTING

Rosa Rugosa Stem Extract is a botanical active renowned for its multifaceted benefits, including potent antioxidant and anti-inflammatory properties. It actively supports the skin's natural barrier function, promotes hydration, and offers anti-aging advantages by targeting oxidative stress and enhancing collagen synthesis. This versatile ingredient is well-suited for improving skin resilience and overall health.

Summary

Antioxidant Anti-inflammatory Humectant Skin Protecting Anti-aging Anti-sebum Antimicrobial Skin Brightening Soothing Skin Microbiome Modulation

Science

Mechanism of Action

This extract operates through several key pathways. Rich in flavonoids, phenolic compounds (such as quercetin, kaempferol, ellagic acid, and gallic acid), and Vitamin C, it delivers robust antioxidant protection against oxidative stress, photo-aging, and environmental aggressors. Its anti-inflammatory action soothes skin by reducing pro-inflammatory cytokine and chemokine levels, while also modulating genes crucial for skin barrier integrity. As a humectant, it attracts and retains water in the stratum corneum, enhancing skin hydration. Anti-aging effects are achieved by inhibiting matrix metalloproteinase-1 (MMP-1) activity, reducing reactive oxygen species (ROS) production, and stimulating procollagen type I α1 expression in dermal fibroblasts. Furthermore, it strengthens the skin barrier by promoting keratinocyte differentiation and increasing the expression of essential proteins like Filaggrin, Involucrin, Loricrin, and Claudin1. Potential benefits also include antimicrobial activity, sebum regulation, skin brightening, and support for a healthy skin microbiome, making it beneficial for sensitive skin types.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

There is no indication in the provided data that Rosa Rugosa Stem Extract is commonly 'dusted' or used at ineffective concentrations for marketing purposes. Formulation data suggests concentrations in the 1-4% raw material weight range, which is typically indicative of an active ingredient.

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Optimal pH specifics are not detailed, but stability is generally influenced by pH, temperature (ideally not exceeding 30 °C), and light exposure. To maintain efficacy, formulations should be light-protected and temperature-controlled. It integrates well into both water-based and emulsion systems. As a humectant, it is most effective when applied before emollients to draw moisture into the skin.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

Rosa Rugosa Stem Extract is generally considered safe for cosmetic use, although individual sensitivities or allergic reactions cannot be entirely excluded. The Cosmetic Ingredient Review (CIR) Expert Panel has not specifically reviewed this extract, but similar ingredients like Rosa Centifolia Stem Extract have been deemed safe when formulated to be non-sensitizing. The Scientific Committee on Consumer Safety (SCCS) has not issued an opinion. While the US FDA recognizes some Rosa spp. extracts as GRAS for food use, this does not directly cover topical cosmetic applications of the stem extract.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Rosa Rugosa Stem Extract is a valuable, multifunctional ingredient, offering significant antioxidant, anti-inflammatory, hydrating, and skin barrier-supporting benefits suitable for all skin types, despite limited human topical clinical concentration data.

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