Redken- Acidic Bonding Concentrate 24/7 Night and Day Serum 7%

Redken's Acidic Bonding Concentrate 24/7 Night & Day Serum is a revolutionary bonding serum that repairs and strengthens processed, damaged hair. This hair treatment works 24/7 to nourish and revitalize your hair.

BEST FOR:

• Processed, damaged hair
• Suitable for color-treated hair

BENEFITS

• Strengthens hair and repairs daily damage overnight
• Delivers 9x stronger hair, 3x more hydration, and 89% less breakage**
• Reduces frizz by 72% after just 8 hours of use*
• 92% of users agree that their hair looks and feels healthy after 24 hours
• Helps maintain color-treated hair and protect from damage caused by heat styling, environmental stressors, and daily wear and tear
• Scented with a calming lavender fragrance for a relaxing overnight hair treatment experience

*continued use of system of abc shampoo, conditioner, and serum vs. untreated hair
**system of abc shampoo, conditioner, and serum vs. non-conditioning shampoo
**based on consumer test results, system of abc shampoo, conditioner, and serum

1. What hair concerns does this serum address?
This serum is designed for damaged, color-treated or otherwise stressed hair that needs bond repair and ongoing protection. It helps strengthen hair, reduce breakage, and restore better texture and smoothness. 

2. What makes it different from a standard leave-in or serum?
It features a 7% Bonding Care Complex (citric acid + polyglutamic acid + squalane) that penetrates hair up to 7 layers deep, rebuilding bonds internally while also providing hydration, frizz control and shine—day and night. 

3. How should stylists apply it in a salon context?
Apply generously from mid-lengths to ends on clean damp or dry hair (avoid roots if hair is fine). Use overnight for intensive repair, and apply during the day as needed for frizz control, conditioning and shine. Do not rinse.

4. Is it suitable for all hair types and textures?
Yes: while especially beneficial for color-processed, bleached or heat-styled hair, the serum is marketed as suitable for all textures and types seeking bond repair and healthier feel. 

5. What benefits or results can the salon expect (and articulate to clients)?

• Up to 9× stronger hair (when used as part of the full system)

• Reduced breakage (e.g., claims of ~89% reduction)

• Improved manageability, smoother texture, and enhanced shine even after 24 hours use. 

6. Can it be used with other products / in other routines?
Absolutely. It pairs well with the rest of the Redken Acidic Bonding Concentrate line (shampoo, conditioner, etc.) for full-system results—but it also stands alone as a leave-in for clients who already use other care lines.

7. Will it weigh hair down or leave residue?
No. Reviews and official info note that the texture is lightweight, absorbs well even on dry hair, and doesn’t leave a heavy, greasy film—so it's appropriate even for finer textures (with appropriate amount and root-avoidance).