Keratin is a protein produced within the body to support the structure of skin, hair and nails. Poor diet and stressful lifestyles can lead to lower levels of keratin, resulting in a supplement being needed. Low levels of keratin show in dry wrinkled skin, brittle nails and thinning hair. You can lose keratin from the hair easily, from dyeing and processing hair colourants, sun damage and chemical treatments. The more keratin found within the hair follicles, the healthier and thicker the hair will look.
Keratin is also largely responsible for making skin strong, waterproof, supple, and flexible. Skin strength and resistance to tearing and penetration come from an abundance of tough, but flexible fibres of keratin in the epidermis, the outer layer of the skin. Keratin cells and fibres also maintain the moisture content of the skin by providing a waterproof yet water-retaining barrier.
Keratin has been added to health and beauty products for many years, while supplements are new to the industry. Years of research has led to a process that makes keratin absorbable within food supplements. This form of keratin, called Cynatine is now found within many beauty formulas and has been shown to improve the health and appearance of skin, hair and nails.
A 2014 randomized controlled trial found that the same keratin formulation was effective for decreasing the rate and amount of hair loss and improving the strength and appearance of nails in adult women.10
Subjects were women between 40 and 71 years old who had clinical signs of damaged hair and nails. They took two capsules of solubilized keratin or a placebo daily for 90 days. By day 90, the researchers observed the following improvements:
At the structural level, the amino acid composition of hair protein changed favourably in the supplemented group.10 By day 90, all four amino acids tested had a statistically significant increase showing the bioavailability of solubilized keratin.
Nail parameters were also significantly improved in the test group.10 Supplemented subjects showed an 87.5%improvement in the tendency of their nails to break, compared with 28.5% in the placebo group.
Five additional nail health parameters showed significant improvements for the supplemented group compared with baseline:
Whether you are looking to create a new product or add to your existing range, Supplement Factory strives to make your private label experience as efficient and relaxing as possible. From queries regarding ingredients, formulation, packaging and design, our experienced team will help you every step of the way. With a wide range of exciting products available, contact us today to see why we are the UK’s leading food supplement contract manufacturers.