Rice peptides are small molecule active peptides extracted from rice protein, which have attracted attention in the fields of skincare and hair care in recent years due to their good biocompatibility and permeability. Regarding its effectiveness on hair, current research and market promotion mainly focus on the following aspects:
- Nourishing and moisturizing
Mechanism of action: Rice peptides are rich in amino acids (such as cysteine, serine, etc.), which can supplement the nutrients required by hair keratin and help repair hair scale damage.
Effect: Enhance hair’s ability to retain moisture, improve dryness and frizz, and make hair smoother and more shiny. - Antioxidant and Protection
Mechanism of action: The active ingredients in rice peptides, such as ferulic acid derivatives, can scavenge free radicals and reduce oxidative damage to hair caused by environmental factors such as ultraviolet radiation and pollution.
Effect: Delaying hair aging and fading, especially protecting damaged hair quality after dyeing and perming. - Promote scalp health
Mechanism of action: Small molecule peptides can easily penetrate the scalp, regulate microcirculation, inhibit inflammatory factors (such as IL-6), and may reduce scalp sensitivity or seborrheic dermatitis.
Effect: Indirectly improve hair loss or fragile hair caused by scalp problems. - Strengthen the structure of hair strands
Theoretical basis: Rice peptides may promote keratin synthesis and enhance hair toughness by activating signaling pathways in hair follicle cells, such as Wnt/β – catenin.
Limitations: Currently, most of the experiments are conducted in vitro or on animals, and the reproductive effects on humans are not yet clear.
In short, rice peptides, as a mild hair care ingredient, are suitable for daily maintenance, but their effect on severe injuries or pathological hair loss is limited, and promotion should be viewed rationally.