What is Replicine?

Popping up now and then in the discussion about natural keratin proteins is the word ‘Replicine’.  I want to talk a little today about what exactly Replicine is and what it means when you find it on your ingredient list.

First things first, what on earth is Replicine?

You can think of it almost as a brand of functional keratin protein.  Are you wondering how protein can be branded?  It’s all about the patent.

See, Replicine is a fully functional keratin protein that has been extracted from pure New Zealand wool. Replicine is the only commercially available keratin protein that has been extracted using this patented technology.  So if you’ve got any sort of functional keratin in your hair product, you can bet it’s Replicine.

What exactly makes Replicine keratin technology different to other keratins?  Replicine respects the complexity of natural proteins and works to replicate them in form, sequence and function.  Remember the post about hydrolyzed keratin?  We all know by now why hydrolyzed keratin just doesn’t cut it in terms of giving your hair the full benefits of keratin.

Replicine, on the other hand, acts just like the natural keratin in your hair and gives you all the same protection and strength. I’ll explain how this works.

Replicine understands nature’s complexity

Most labs treat all keratins as the same, but the scientists behind Replicine know that this is not the case.  Rather, keratins can be categorized into families.  Some keratin families are responsible for strength and some act more as glue that holds the hair together.

By respecting the different forms of keratin, Replicine functional keratin technology can isolate and use the proteins exactly how they were intended to be used.  For instance, in hair products, Replicine is the only keratin protein that can mimic and can regenerate with your own hairs natural keratin.

Replicine maintain keratin’s form and function

Imagine a zipper.  The teeth on both sides need to be designed to perfectly fit and lock into each other.  If the spaces or the sizes aren’t perfectly matched to each other, then the zipper doesn’t work.

Keratin can be thought of like a zipper.  You want the keratin in your hair and skincare products to interact with the natural keratin in your body.  So picture the teeth of one side of the zipper as your own natural keratin.  What should the teeth on the other side look like?

Well, if you want the zipper to work the teeth need to be exactly the same on both sides.  That’s why Replicine completely replicates the form of natural keratin proteins.  So it fits right in with the stuff in your hair and skin.

Replicine controls sulphur amino acids

Making up about 5% of your hair is an amino acid called cystine.  Cystine determines the structure of proteins by forming bonds between and within protein molecules.

We already know that the structure of the proteins is crucial to their function, so clearly the cystine in the keratin plays an important role.  Unfortunately, few companies seem to realize this and cystine is almost always destroyed in the extraction process.

Replicine makes sure the amino acids in keratin is protected to keep the cystine intact and ensure that it can bind to the hair like it’s supposed to.

And that’s Replicine!

All of these things go into the extraction and processing of keratin from pure New Zealand sheep’s wool to result in Replicine.  Each of these processes, by the way, is patented by a company called Keraplast.  Keraplast is the only holder of these technologies and Replicine is the only protein that can claim them.

So there’s your science lesson for the day.  Just remember to check the ingredient list before you buy your keratin product…  Look for Replicine, the only fully-functioning keratin protein on the market.

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8 Responses to What is Replicine?

  1. Oscar on

    I am a french student working on keratin for my major in science.
    For now, I have almost everything I need, but I NEVER found anything on the “keratin” that exist on the hair extensions (keratin tips as it is called).
    I found your email after working on this in many forums and web sites.

    Do you have any information on this thing? I don’t think it is real keratin, but I would like to have some place in my memoir for this kind of products.

    Thank you in advance for your time,

    • Keratin Questions on

      Hi Oscar,
      I’m sorry but I don’t know a lot about the glue used in hair extensions. There are a few on the market and they will have differences in their formulations. Some are based on a combination of rubber latex and sodium polyacrylate, others are a polyamide, but this may not be the case with all hair extension glues. However generally speaking the glue is unlikely to be a keratin based compound. Depending on how they have been processed, Keratins are either water soluble or completely insoluble, whereas the glue used can be dissolved using acetone. This suggests some sort of rubber or petrochemical based adhesive. It is possible that there may be some hydrolyzed keratin incorporated into the adhesive formulation, but this would not be providing the durable adhesion that these products have. You can have a look at this site where they claim to have assessed a number of top brand keratin extension adhesives and found none of them to contain keratin

      But to add to the information contained on the site given above: unlike most sources of keratin, the patented process used to manufacture Replicine™ Functional Keratin® is the ONLY commercial process capable of extracting the keratin proteins out of the keratin fiber, without damaging them. In this process healthy New Zealand sheep wool is used as the source of the keratin and this is very similar to human hair keratin. At this stage, Replicine is not used in glues for hair extensions.

  2. Michelle on

    My auntie owns a salon in London and she is interested in sampling your range. How does she go about arranging that? Also is replicine edible? I have seen a company from New Zealand selling a supplement which they claim has the sheeps wool keratin.
    Is this plausible and safe?

    Thank you

    • Keratin Questions on

      Hi Michelle,

      Thank you very much for that referral. Keraplast will get in touch with you directly to organize to send samples to your aunt.

      Depending on how it is processed- yes keratin from NZ wool is edible and safe. There are several products on the market available that include keratin from New Zealand wool. The Finest Nutrition line sold in in the American retailer Walgreens is one of them. There are also the Younger Secrets Marine Keratin and Collagen formula capsules that your link goes to. The following products include edible keratin from NZ sheep wool:

      – Dr. Susan Lark Hair & Nails Revitalizer
      – ResVitále™ Keratin Enhance
      – Futurebiotics Hair, Skin & Nails® Intense Therapy
      – Supersmart.com hair and Nails Formula
      – Lorica Kera-Concept
      – Nasstassja Ultra NHS
      – Douglas Laboratories Ultra NHS

      When processed in the correct way then keratin from New Zealand wool can provide significant benefits in hair, skin and nail health as well as for joint health. Here are some scientific publications that describe the benefits.


  3. Kerry on

    Our company has recently launched a skin care range, being a hair salon owner as well I would like to develop our own keratin protein treatment. Would I be able to buy Replicine to use in our own products?

    • Keratin Questions on

      Hi Kerry,
      Keraplast does offer private label for hair care. We will be in touch with you directly to discuss this further.

  4. Dawn on


    I am a wavy haired gal that constantly gets comments from co-worker that I need to get a Brazilian blow out due to the frizziness of my locks. I don’t want straight hair, but I would love to tame the frizz. I most often just wash, mousse/gel and go, but sometimes I can get to the blow dryer and tools. Can you direct me where I might find some sample sizes of your product to try?

    • Keratin Questions on

      Hi Dawn,
      Keraplast has a product called Hair Rescue. It is an intensive repair treatment that helps to restore dry, frizzy, chemically damaged hair back to a healthy, shiny state. We will be in contact you directly in obtaining product.

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