Home Keratin FAQs

Keratin FAQs

Frequently Asked Questions about Keratin Products

  • Q. Is keratin safe?

    • A. Yes. We have conducted extensive testing and research to ensure that our keratin products are 100% safe for topical application for use on wounds, on skin, on hair, and as nutritional products for ingestion.
  • Q. What are the advantages of Keraplast keratins over other proteins, such as collagen and vegetable proteins?

    • A. There are several advantages to using Keraplast's Replicine keratin protein. Replicine keratin is almost identical to the keratin present in skin and hair, and so can naturally bind and interact with skin and hair and impart a range of benefits. Other proteins do not have the same structure as the hair and skin they are trying to improve, and so are much less effective. As Keraplast's Replicine keratin is removed in an intact form from pure wool, the properties are retained. Collagen or vegetable proteins are typically hydrolyzed in order to extract them, and in doing this they lose any form or function that may have been useful in hair and skin applications. The fact that Keraplast keratin is obtained from wool, a fiber very similar to human hair, has obvious benefits in hair and skin care applications.
  • Q. What is Replicine?

    • A. Combining three technologies - oxidized keratins, intact keratin proteins and keratin peptides has created a unique keratin technology that captures the essential aspects of keratin proteins required for genuine benefit. We call the resulting technology Replicine, the only real keratin commercially available.
  • Q. Can damaged hair be repaired by keratin?

    • A. Yes it is possible for damaged hair to be repaired, however this can only be achieved with Replicine Functional Keratin protein. This is because Replicine rebuilds the keratin protein present in damaged hair, binding strongly in a way hydrolyzed keratin cannot do. This is possible with Replicine as the keratin structure essential for binding has been maintained. Hydrolyzed keratin has lost the form, structure and function needed for to bind strongly and repair damaged hair. 
  • Q. Can keratins get into hair or do they just coat the surface?

    • A. If hair is in perfect condition then Replicine keratins will deposit on the surface and form a sacrificial shield, protecting the hair from damage. However, if hair is damaged then the hair structure is opened up and Replicine keratins penetrate into the fibre and bind to the internal structure, rebuilding the damaged proteins to restore strength and condition to the fibre. Hydrolyzed keratins cannot bind in the same way to the hair as they do not have the structure required. We have studied the penetration of Replicine keratins into the hair structure using microscopy to prove that they penetrate and stay bound inside the hair. 
  • Q. Is the keratin in hair care products the same as keratin in my hair?

    • A. Keratin from wool is almost exactly the same as the keratin in your hair. The Replicine technology takes care to maintain the keratin structure when isolating it from wool, and so Replicine Functional Keratin is almost exactly the same as the keratin in your hair. This makes it ideal for repairing the damaged keratin in your hair. Hydrolyzed keratin is much less like the keratin in your hair because it is substantially altered during manufacturing and as a result has lost the important protein structure. Hydrolzyed keratin is not able to repair hair in the way that Replicine can.
  • Q. What are hair identical proteins?

    • A. Some hair care products state that they contain hair identical proteins. These are proteins that have been analyzed and shown to contain a series of amino acids linked together in an identical manner to the protein found in hair. Hair identical proteins can only be produced using our proprietary keratin extraction technology.
  • Q. What type of keratin is in keratin hair straightening treatments?

    • A. Hair straightening treatments are often marketed as keratin treatments. However, they most often contain hydrolyzed keratins, which are very different from the keratin in your hair. Hydrolyzed keratins are very small groups of amino acids joined together, sometimes individual amino acids, that have lost all of the form and function of the original keratin during the harsh processes used to extract them from the keratin source. Sometimes the hydrolyzed keratins are extracted from animal by products, such as horns or hooves. Replicine keratin is extracted only from pure New Zealand wool without any harm to animals. The proteins maintain form and function and so bring repairing and restoring benefits to the hair. Replicine keratins can be considered hair identical and are the keratins best suited to keratin treatments and after care products.
  • Q. Does keratin make hair straight?´╗┐

    • A. No. The keratin in salon hair straightening treatments is included to protect and restore the hair from the chemicals used in many straightening treatments. These chemicals are designed to lock the hair straight by binding to the protein and can cause damage such as brittleness and weakening of the hair. Aldehyde based chemicals such as formaldehyde are often used. The role of the keratin is to try and keep the hair in good condition following the treatment.
  • Q. How does keratin work in skincare?

    • A. By working in concert with the biological systems of the skin to stimulate cell growth, Replicine brand Functional Keratin technology encourages expression of collagen proteins at the right level in the skin to achieve wrinkle reduction and boost the skin's own antioxidant defense systems. Replicine is unique in its ability to work with the skin's own cells due to the intact nature of the keratin proteins and the high degree of similarity with the skin's own keratin protein.