Redken Acidic Bonding Concentrate 24/7 Night & Day Serum For Damaged Hair - Nourishes & Restores, Overnight Hair Repair & Protection, Lightweight & Anti-Frizz

Bond Repair Technology — Contains Redken’s Bonding Care Complex + citric acid to strengthen and reconnect weakened hair bonds from chemical, heat or mechanical damage.

pH-Sealing & Cuticle Protection — Formulated with an acidic pH (around 3–4) to seal the hair cuticle, lock in treatment benefits, and add instant shine.

One‑Use Strength & Smoothness Benefits — Helps reduce breakage, smooth hair, and improve manageability upon first use. 

Heat Protection Up to 450°F / 230°C — Protects hair from styling damage while preserving the repair process. 

Split End Reduction — Visibly reduces split ends when used as part of the full Acidic Bonding system. 

Color Safe & Sulfate-Free Formula — Compatible with color-treated and chemically processed hair; free from harsh sulfates. 

Lightweight & Non-sticky — Absorbs easily without leaving residue or weighing down hair — ideal for everyday use. 

Usage Instructions — Apply to clean, towel-dried hair after shampoo & conditioner. Leave‑in (do not rinse), then style as usual.