Raw keratin, due to its high molecular weight, cannot penetrate the cuticle. This is why modern formulation relies on hydrolyzed keratin. Through enzymatic fractioning, its peptide chains are reduced to a molecular weight compatible with intra-molecular penetration.

• The Mechanism: The resulting micro-peptides diffuse through the micro-fissures of the cuticle to anchor directly within the cortex. They act by filling areas of protein deficit, temporarily restoring tensile strength and reducing porosity.

• The Clinical Reality: No topical treatment can permanently "resuscitate" a permanently destroyed disulfide bond. The action of hydrolyzed keratin is a process of structural compensation. It reinforces the hair from within, minimizes breakage, and requires consistent maintenance to preserve its benefits.

At MELANY LAB, the efficacy of an isolated active ingredient is meaningless unless it is integrated into a systemic protocol that respects skin and hair physiology. This is why keratin is never used in isolation, but within a rigorous sequence:

1. Preparation & Cleansing (Shampoo): The Keratin Volume Boost Shampoo utilizes gentle surfactants coupled with caffeine and rosemary to stimulate follicular micro-circulation while initiating protein delivery.

2. Deep Reconstruction (Mask): The Keratin Intensive Rescue Hair Mask, applied after cleansing when the cuticles are receptive, delivers a high concentration of keratin, wheat proteins, shea butter, and botanical oils to rebuild the lipid and protein matrix.

3. Osmotic Sealing (Conditioner): The Keratin Volume Boost Conditioner acts with a strategic acidic pH (between 4.5 and 5.5). It induces the contraction and locking of the cuticle, trapping the reconstruction actives deep inside the fiber while guaranteeing lightweight volume thanks to the synergistic action of betaine and botanical extracts (chanterelle, nettle).

To perfect the health of the hair architecture, the protocol integrates specific treatments tailored to the morphological variations of the scalp and lengths:

• The Scalp Care Exfoliating Serum: Designed for scalps prone to sebum buildup or desquamation. Through gentle chemical exfoliation (lactic acid) and sodium hyaluronate, it purifies the follicular ostium, unburdening the root without altering the hydrolipidic film.

• The Rosemary Hair & Scalp Strengthening Oil: Used as a pre-shampoo oil bath or as an ultra-localized finishing touch (1 to 2 drops max on the ends), it provides lipid reinforcement to dry structures while activating peripheral oxygenation via rosemary and peppermint essential oils.