Science
Mechanism of Action
RHEUM UNDULATUM ROOT/STALK/STEM EXTRACT functions as a potent antioxidant, shielding the skin from environmental free radical damage and mitigating visible signs of aging. It enhances skin cell regeneration, leading to improved elasticity and a smoother texture while diminishing fine lines. Hydration is supported by its ability to help skin retain moisture, promoting a natural radiance and softness. For uneven skin tone, it can gently brighten by inhibiting melanin production and facilitating mild exfoliation through natural alpha hydroxy acids like malic and citric acids. Its anti-inflammatory capabilities calm irritated skin and reduce redness, making it beneficial for sensitive conditions. Furthermore, it helps manage sebum production, tones the skin, refines pores, and clears blockages, which is advantageous for oily and blemish-prone complexions. The ingredient also boosts collagen synthesis due to its Vitamin C content, strengthens the skin's moisture barrier, and exhibits photoprotective effects against UV-induced damage by inhibiting tyrosinase and tyrosine kinase, and reducing pro-inflammatory cytokines. It also possesses antimicrobial properties and supports skin repair, potentially delaying cellular senescence.
Research
Clinical Evidence
Medium confidence1%
Key findings
- 01 Utilized in soothing and repairing cream formulations to alleviate and repair skin conditions caused by hair follicle and sebaceous gland blockage and inflammation, while also preventing skin laxity and reducing wrinkles.
- 02 Applied in soothing and repairing lotion formulations to address common skin diseases linked to follicular and sebaceous gland issues, and to offer anti-aging benefits by preventing loose skin and reducing wrinkles.
- 03 Recommended for general skincare benefits, including antioxidant protection, skin brightening, renewal, gentle exfoliation, and hydration.
- 04 Suggested for facial cleansers to aid in controlling excess oil, unclogging pores, and refining skin texture.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Rhubarb extracts may exhibit low stability of polyphenols, potentially leading to a red-brown coloration that can evolve over time. It is advised to incorporate this extract into the water phase of formulations, ideally during the cool-down stage for certain types. Sedimentation may occur upon standing, necessitating thorough mixing prior to use. The extract is compatible with emulsion and surfactant systems. Optimal storage requires a sealed container in a cool, dry, well-ventilated environment, protected from humidity, preferably under 25°C (77°F).
Conflicts
- Materials causing color changes due to polyphenol instability
- Strong bases, which may cleave oside functions in hydroxystilbenes
Safety
Safety Profile
Rhubarb extracts are generally considered safe for topical application in controlled cosmetic preparations. While rhubarb contains oxalic acid, its levels in skincare formulations are carefully managed to avoid issues associated with high oral intake. Material Safety Data Sheets (MSDS) for Rhubarb Root extract indicate no known skin hazards, and related rhubarb extracts are listed as 'Irritant Free' by SkinSAFE.
Your Skin
Skin Compatibility
Our Assessment
Verdict
RHEUM UNDULATUM ROOT/STALK/STEM EXTRACT is a valuable, versatile botanical offering significant antioxidant, anti-aging, soothing, and clarifying benefits across all skin types with a low risk of irritation.
Related
Similar Ingredients
Finding similar ingredients…