Acidic Protein Amino Concentrate is a salon-exclusive, backbar treatment from Redken's Acidic Bonding Concentrate system, built for stylists to customize in-salon protein and bonding services on damaged or over-processed hair. It is formulated at a professional concentration — 12% cationic and amino acids — to help reinforce the hair's internal strength, reduce breakage, and visibly reduce surface damage, with results that build over repeated use as part of the full Acidic Concentrates regimen.
It is one of two assessment-based concentrates in the line: Acidic Protein Amino Concentrate for hair that needs strength (breakage, over-processing, chemical damage), and Acidic Moisture Concentrate for hair that needs moisture (dryness, dullness). A stylist evaluates the client's hair condition first, then applies one concentrate or blends both, always finishing with Redken's Acidic pH Sealer to lock the treatment in. Because correct dosing and pairing depend on a professional's in-service assessment, this is intended for stylist application in a salon setting rather than unsupervised at-home use.
- After shampooing, apply up to 15ml total (1 dose = 5ml) of Acidic Protein Amino Concentrate to towel-dried hair
- If the client's hair needs both strength and moisture, it can be blended with Acidic Moisture Concentrate, keeping the combined total at or under 15ml
- Leave on for 5 minutes; do not rinse
- Follow immediately with Redken Acidic pH Sealer
