HL Labs Moisturizing Booster Step 1 | Vitalise 100ml/3.38FL.OZ. is a professional-grade serum that deeply hydrates skin, improving elasticity and firmness. Perfect for facial massages, this ultra-moisturizing formula is recommended for all skin types, particularly those with dermal dehydration. Maximize results by pairing with the MOISTURE OPTIMIZING MASK STEP 2.