Processing begins in osmosis baths
The secret of the composition of the osmosis baths which gently remove the hair pigments from the raw hair in 15 to 20 days is guarded similarly to the Coca Cola formula.
Only a few Great Lengths employees know the actual recipe which eliminates treating the surface of the hair with chemicals, which would damage the outer texture, i.e. the cuticles. Instead, osmosis baths slowly, hence very gently, remove the dark color pigments from inside the hair.
This gentle process – without any harsh chemicals – preserves the natural cuticles of the hair. And so the hair also keeps the shine and the elasticity of high-quality extensions.
The time the hair remains in the bath essentially depends on the desired color: The lighter the extensions, the longer they undergo depigmentation.
Specialists dye extensions.
Once the extensions have been in the osmosis bath for the required time, trained employees in Nepi can continue processing them. The extensions are colored, also referred to as pigmentation, just as gently as the depigmentation.
The gap in the texture of the hair resulting from color pigments being removed during the depigmentation process can now be filled with the desired color molecules – a valuable process Great Lengths adopted from coloring the precious natural fiber cashmere.
Other coloring processes would not allow the color molecules to penetrate the hair as deeply. So the color would remain on the surface of the hair and would lose brilliance and shine after just a few washes.
The Great Lengths coloring process is meticulously planned: In addition to the time it remains in the respective color bath, the temperature of the bath is also crucial: If it’s too low, the color pigments won’t penetrate deep enough into the texture of the hair, if it’s too high, it will damage the hair. Accuracy and precision are key.
After drying the hair is blended into strands of different shades by hand, just as natural hair. If the strands only consisted of a single shade, the transition between the natural hair and the Extensions would be obvious. Purposefully combining various shades, on the other hand, yields a very natural looking result. For this purpose employees mix and draw bundles of different shades across a special tool, known as a hackle, over and over again until they have reached the desired blend.