prep + repair at home duo

DAMAGE SHIELD is our newest innovative category that takes the guesswork out of your K18 routine. Developed to offer protection from damage between treatment mask days, plus extra softening and protection after salon services. This category includes the DAMAGE SHIELD protective conditioner + the renamed pH protective shampoo (previously pH maintenance shampoo).

No, the formula of the DAMAGE SHIELD pH protective shampoo is not different from the PEPTIDE PREP™ pH maintenance shampoo. Just the name has changed, the formulation you know and love is the same.

No, the conditioner does not repair damage like the mask does. This nourishing, protective conditioner shields against 3 types of damage (daily mechanical, UV, and environmental) for up to 3 days*— to help maintain hair health and improve smoothness and shine. Both formulas include the K18PEPTIDE™ with different benefits.

The mask has a higher concentration of the peptide to reverse damage. In the conditioner, the K18PEPTIDE™ replenishes protein lost during washing, while the cuticle is still swollen, to fortify hair health and strength. To get damage repair benefits from the K18PEPTIDE™, use the K18 mask first, wait 4 minutes, then apply the K18 conditioner.

*k18hairpro.com/disclaimers

For best results, we do not recommend mixing the K18 conditioner with the oil. Use the K18 molecular repair hair oil after the K18 conditioner.

For maximum damage repair benefits from the molecular repair hair oil, we recommend using it without conditioner.