Science
Mechanism of Action
This ingredient functions as an internal skin tensor by stimulating mechanoreceptors and alpha-SMA fibers, crucial for maintaining dermal tissue mechanical tension and bolstering the skin's resistance to gravity. It further enhances skin structure by activating YAP and TAZ proteins, which mediate mechanical continuity between the dermis and epidermis. Rich in minerals, amino acids like lysine, and sugars, it supports healthy skin cell function, strengthens the skin, and contributes to visible wrinkle reduction and long-term firmness. Additionally, its components provide antioxidant and anti-inflammatory benefits.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 A manufacturer's 56-day study on a rye extract, involving 20 participants, demonstrated anti-wrinkle effects at crow's-feet and nasolabial folds, with a 13-23% decrease in wrinkle number, a 15-26% reduction in total wrinkle surface, and a 16-27% reduction in wrinkle length. Note: These findings pertain to a rye extract, not rye seed flour, and no specific concentrations were reported for the flour form.
- 02 In vivo studies on 'Coheliss' (Secale cereale seed extract) revealed significant smoothing of cutaneous microrelief after 28 days, evidenced by a -9.6% decrease in roughness parameter Sa and a -10.8% decrease in Sq. The extract also led to a notable increase in skin reflectance (+12.2%), enhanced healthy glow (+12.5%), and reduced the appearance of eye fatigue (-12.0%) over 28 days. Note: These findings pertain to a rye extract, not rye seed flour, and no specific concentrations were reported for the flour form.
Transparency
Dusting Analysis
Due to its particulate nature, SECALE CEREALE SEED FLOUR poses a risk for respiratory sensitization and immunotoxicity when used in inhalable forms such as sprays or powders. Safety ratings are elevated in these applications, warranting caution during formulation and usage.
The Formula
Formulation
Stability
To maintain quality and prevent mycotoxin production, long-term storage requires moisture levels below 14.0%, as higher moisture content fosters bacterial and fungal growth. When formulating, its fragile albuminous seeds necessitate a broad surface area to avoid lump formation. The milling technique can also influence the physicochemical properties of the final product.
Safety
Safety Profile
EWG's Skin Deep classifies 'SECALE CEREALE (RYE) SEED FLOUR' as 'Restricted' for EWG VERIFIED products without adequate substantiation, citing 'Allergies & Immunotoxicity' as a moderate concern. 'Cancer' and 'Developmental and Reproductive Toxicity' are identified as low concerns. The Association of Occupational and Environmental Clinics (AOEC) categorizes it as a human immune and respiratory toxicant or allergen, supported by strong evidence, especially when used in inhalable forms.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While SECALE CEREALE SEED FLOUR exhibits promising anti-aging and firming mechanisms and is suitable for dry, sensitive, and normal skin, the significant safety concerns regarding allergies and respiratory toxicity, coupled with a lack of specific clinical efficacy data for the flour form at defined concentrations, warrant careful evaluation for precision skincare applications.
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