The efficacy of rice peptides on the skin: scientific analysis of anti-aging, repairing, and moisturizing
Due to its small molecular weight and high biological activity, rice peptides have shown excellent performance in the field of skincare. They can not only improve skin condition orally, but also be used externally in skincare products. Here are its 6 core benefits and mechanisms of action on the skin:
- Promote collagen synthesis, wrinkle resistance and firming
Stimulating fibroblasts: Small molecule peptides in rice peptides, such as glycine proline hydroxyproline, can activate the fibroblasts in the dermis of the skin, promote the synthesis of collagen type I, III, and elastin, and reduce wrinkles.
Inhibiting collagen degradation: By reducing the activity of matrix metalloproteinases (MMPs), slowing down collagen loss, and maintaining skin elasticity.
Research support:
Experiments have shown that after using skincare products containing rice peptides for 4 weeks, subjects’ skin elasticity increased by 18% and wrinkle depth decreased by 12% (Journal of Cosmetic Dermatology). - Strong antioxidant properties to combat free radical damage
Clearing free radicals: Tyrosine Pro and other antioxidant peptides in rice peptides can neutralize free radicals generated by UV radiation, pollution, and other factors, preventing oxidative stress.
Enhance the activity of antioxidant enzymes: increase the levels of superoxide dismutase (SOD) and glutathione (GSH) in the skin, and delay photoaging. - Deep moisturizing and repairing barrier function
The precursor of natural moisturizing factor (NMF): amino acids in rice peptides (such as arginine and serine) can help the skin lock in water and increase the moisture content of the stratum corneum.
Strengthening the skin barrier: By upregulating the expression of filaggrin and tight junction protein, reducing transdermal water loss.
Experimental data:
Two weeks after topical application of lotion containing rice peptide, skin water loss decreased by 23%, and drying and scaling improved significantly (International Journal of Cosmetic Science). - Relieve sensitivity, anti-inflammatory repair
Inhibition of inflammatory factors: Rice peptides can downregulate pro-inflammatory factors such as IL-6 and TNF – α, and alleviate sensitive symptoms such as redness and stinging.
Repair damaged skin: Suitable for barrier damaged skin such as rosacea and atopic dermatitis (AD). - Inhibit melanin and brighten skin tone
Blocking tyrosinase activity: Some rice peptides, such as lysine leucine dipeptides, can interfere with the melanin synthesis pathway and reduce pigmentation.
Accelerate metabolism of formed melanin: promote keratin renewal, fade acne scars and sunspots.
Effect comparison: In vitro experiments, the whitening effect of certain rice peptides is similar to that of arbutin, but the irritation is lower. - Promote wound healing and reduce scars
Accelerating epithelial cell migration: Small molecule peptides can promote skin wound repair and reduce scar formation.
Regulating fibrosis: Inhibiting excessive collagen deposition (such as hypertrophic scars).
The skincare application forms of rice peptides
(1)Oral administration:
Collagen Peptide Drink (Compound VC has better effect)
Beauty supplements (improve skin elasticity, moisturize)
(2)External use category
Anti aging essence (with hyaluronic acid and peptide)
Repair facial mask (applicable to sensitive muscles)
Moisturizing lotion (strengthening barrier)
precautions
External safety: Rice peptides themselves are mild, but attention should be paid to whether other ingredients in the formula (such as preservatives) are allergenic.
Oral dosage: Generally 10-20g per day, please refer to the product instructions for details.
Summary: Rice peptides are versatile skincare active ingredients
Internal use – improves skin elasticity and hydration from the inside out
External use – combining anti-aging, moisturizing, repairing, and whitening effects
Safe and hypoallergenic – suitable for sensitive skin and medical professionals