Redken Acidic Bonding Concentrate 24/7 Night & Day Serum — Lightweight Repair for Damaged, Color-Treated Hair, Anti-Frizz Protecti

Redken Acidic Bonding Concentrate 24/7 Night & Day Serum is a lightweight leave-in treatment that repairs compromised hair bonds, reduces frizz, and delivers continuous overnight and daytime protection.

This advanced serum is formulated for processed, color-treated, and damaged hair that needs both immediate smoothing and long-term strengthening. Combining citric acid to penetrate multiple layers, polyglutamic acid for bond support, and squalane for lasting hydration, the formula is designed to restore strength, reduce breakage, and improve manageability with daily use. Use it on damp or dry hair—day or night—to target mid-lengths and ends where damage and split ends are most visible.

How quickly will I see smoother, stronger hair?

Many users notice tangible smoothing after the first application, with progressive improvements over subsequent uses. Clinical results show visibly smoother hair after one use and enhanced smoothing after repeated applications, making it effective for both instant styling needs and cumulative repair.

• 7x smoother hair after a single application
• Noticeable improvement in texture by the fifth use
• Reduces visible split ends and surface roughness

What ingredients make this serum effective for damaged or color-treated hair?

The formula blends targeted actives that work at different levels: citric acid reaches deeper hair layers to help rebond structure, polyglutamic acid supports internal repair and moisture retention, and squalane seals and softens the hair surface. Together they deliver both repair and long-lasting protection without weighing hair down.

• Citric acid: penetrates multiple layers to help rebuild bonds
• Polyglutamic acid: strengthens and locks in hydration
• Squalane: provides lightweight emollience and anti-frizz protection

Can I use it every day and with heat styling or color treatments?

The serum is designed for daily use and works on both damp and dry hair, so it can be incorporated into morning styling and evening routines. It helps protect color-treated hair from daily stressors and offers humidity resistance to minimize frizz during styling or when exposed to moisture.

• Safe for color-treated and chemically processed hair
• Use before heat styling for added protection
• Provides up to 72 hours of humidity protection to control frizz

How should I apply the serum for best results?

Apply a generous amount to mid-lengths and ends—areas most prone to breakage and split ends—on clean, damp or dry hair. Distribute evenly with fingers or a comb, then style as usual; for overnight repair, apply before bed and allow the formula to work continuously through the night.

• Apply to mid-lengths and ends; avoid roots for fine hair
• Can be used on damp or dry hair, day or night
• Style or let it work overnight for continuous repair

Who is this for: This serum is ideal for anyone with processed, bleached, or chemically treated hair that needs visible repair and frizz control—especially those wanting a lightweight, non-greasy leave-in that supports both daily styling and overnight restoration. If your hair is weakened, dry, or shows signs of breakage and split ends, incorporating this product can help strengthen strands, improve texture, and protect color longevity without sacrificing natural movement.

Ingredients

AQUA / WATER / EAU • ISOPROPYL MYRISTATE • DIMETHICONE • TRIETHANOLAMINE • AMODIMETHICONE • PHENOXYETHANOL • SQUALANE • PARFUM / FRAGRANCE • CARBOMER • POLYQUATERNIUM-4 • POTATO STARCH MODIFIED • HYDROXYPROPYL GUAR • CITRIC ACID • BEHENTRIMONIUM CHLORIDE • SODIUM POLYGLUTAMATE • COCO-BETAINE • TRIDECETH-6 • ISOPROPYL ALCOHOL • SODIUM CHLORIDE • CETRIMONIUM CHLORIDE • LIMONENE • LINALOOL • GERANIOL • CITRONELLOL • COUMARIN • ALPHA-ISOMETHYL IONONE