The biological activity of beta-glucan is determined by its molecular structure which depends on its origin (yeast, oat, wheat, fungi). Beta-glucan from yeast was shown to have the most potent immune-enhancing capability.
Beta-glucan isolated from yeast is insoluble in water and therefore not suitable for cosmetic use. Thus, Angel developed Sodium Carboxymethyl Beta-Glucan, a biologically active beta-glucan derivative which keeps the same biological activity as beta-glucan.
Langerhans cellsactivated by C90 can stimulate the generation of cytokines, such as leukotriene, interleukin and colony stimulating factor(CSF), further promote the functions of phagocytosis, anti-infection, cells activation and T- cells proliferation.
Efficacy
1. Sunburn repair
UV-rays in the sunlight can cause skin erythema and damage, and accelerate skin aging. C90 (5% in formula) can obviously accelerate the skin repair from sunburn, decrease the skin erythema, damage and aging.
2. Anti-aging
32 volunteers aged from 35 to 65 took part in the tests. The formulation of C90 at a concentration of 5% was used as a treatment on the volunteers' arms for 4 weeks. Every week the skin was tested to determine the skin average roughness (SAR). The results showed formulation with C90 was effective as an anti-aging agent when compared with the control group.
3. Moisturizing
30 volunteers of random gender at random agetook part in the tests of Transepidermal Water Loss (TEWL). The formulations of C90 at a concentration of 5% were used as pretreatment on the volunteers' arms for evaluation of skin humidity protective effects. The results showed that C90 significantly decreased the skin humidity loss compared with the control groups.
Key Benefits and Claims
• Natural, derived from Saccharomyces cerevisiae
• Activates the skin’s self-protecting capacity
• Accelerates skin recovery, wound healing
• Restores the skin’s moisture barrier
• Repair of sunlight-induced skin damage
• Anti-aging and anti-radiation
Formulating
• Proposed INCI name: Sodium carboxymethyl beta-glucan, water
• Recommended use level: 5%- 10%
• Recommended working pH: 4.5-7.5
• Recommended working temperature: £45 °C
Applications
• Moisturizing and repair products
• Skin care for highly sensitive, damaged skin
• Sun-care products
Stability and Storage
Yeast Essence C90 can be stored for at least 24 months from the date of manufacture in the unopened original container protected from light in a clean place at a temperature between 2 and 10°C. Keep package tightly closed. Once opened, use contents quickly. In order to avoid secondary microbial contamination, following opening, containers should be handled with special care.