Redken Acidic Bonding Concentrate Leave-In Conditioner
- Liquid Volume: 5.1 fl oz
- Size: 5.1 fl oz
- Hair Type: Damaged
- Hair Conditioner Type: Leave-In Hair Conditioner
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A leave-in that pairs bond repair with real heat protection to 450 degrees F, most useful alongside the matching rinse-out conditioner rather than on its own.
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ASIN: B08P67N41HCategory: Hair Conditioners
Overview
Redken Acidic Bonding Concentrate Leave In Conditioner (model P2034001) is the no-rinse counterpart to Redken's rinse-out bonding conditioner, adding heat protection up to 450 degrees Fahrenheit for hair weakened by color or styling tools.
Rather than a standalone product, this sits at the end of Redken's Acidic Bonding Concentrate routine: shampoo, rinse-out conditioner, then this leave-in as the step that stays in through blow-drying and hot tools. The same citric acid and bonding complex carries over from the rinse-out version, with heat protection layered on top for people who style with heat regularly.
- Leave-in, no-rinse application on damp hair
- Rated for heat protection up to 450 degrees F
- Citric acid and bonding complex formula
- Vegan and sulfate-free
Who it's for
Fits people with damaged, color-treated or heat-styled hair who blow-dry or use flat irons and want bond repair and heat protection in the same step. Less relevant for anyone who air-dries and has no heat-damage concerns.
Pros and cons
- Heat protection rated to 450 degrees Fahrenheit
- Same bond-repair chemistry as the rinse-out version
- Leaves out an extra rinse step, quick to apply
- Works as part of a two-step system, not alone
- No fragrance or texture description provided
- No independent review data included here
Performance notes
Applied to clean, damp hair and left in without rinsing, the formula combines the citric acid and bonding complex from the rinse-out conditioner with a layer that Redken says withstands styling tool heat up to 450 degrees Fahrenheit. Redken also credits it with visibly reducing split ends and breakage over repeated use, and states it is suitable for daily use on all hair types, including color-treated hair.
Specifications
| Brand | Redken |
|---|---|
| Dimensions & fit | |
| Size | 5.1 fl oz |
| Item Weight | 0.35 pounds |
| Item Dimensions | 1.5 × 2.4 × 7.8 inches |
| Capacity & performance | |
| Liquid Volume | 5.1 fl oz |
| Age Range Description | Adult |
| Construction & materials | |
| Material Features | Vegan |
| Material Type Free | Sulfate Free |
| Included components | |
| Unit Count | 5.1 fl oz |
| Package Type Name | Bottle |
| Other details | |
| Hair Type | Damaged |
| Hair Conditioner Type | Leave-In Hair Conditioner |
| Item Form | Cream |
| Scent Name | Citrus |
| Number Of Items | 1 |
| Product Benefits | This bond repair leave in conditioner strengthens and provides heat protection for damaged or bleached hair. |
| Recommended Uses For Product | salon;spa |
| Additional Features | Repair damaged hair and weakened bonds with immediately visible results. |
| Item Highlight | Leave In Conditioner For Hair Repair, Strengthening, Frizz Control, And Heat Protection For Damaged, Weak Hair |
Frequently asked questions
Do I rinse out the Redken Acidic Bonding Concentrate leave-in?
No, it is applied to damp hair and left in; it is not rinsed out.
How much heat protection does it offer?
Redken rates it for protection up to 450 degrees Fahrenheit from blow dryers, flat irons and curling tools.
Can it be used with the rinse-out Acidic Bonding Concentrate conditioner?
Yes, Redken sells both as part of the same Acidic Bonding Concentrate collection, meant to be used together.