Redken's Acidic Bonding Concentrate Shampoo is a sulfate-free, pH-balancing cleanser built around citric acid, which the brand says helps reinforce weakened bonds in damaged hair. It uses mild glucoside and isethionate surfactants with panthenol, glycerin and silicones for slip. Creators with bleached and color-treated hair commonly report softer, smoother lengths, though the headline breakage claims come from using the full shampoo, conditioner and leave-in system. It carries an AHA sun-sensitivity warning and a salon-brand price.

Best for

Bleached, highlighted or color-treated hair
Anyone building a full Redken Acidic Bonding routine

What we love

Sulfate-free, acidic-pH formula aimed at damaged and color-treated hair
Reviewers report softer, smoother and shinier lengths after bleach or color
Refill and liter sizes lower the cost per wash
Works as part of a full Redken repair system with conditioner and leave-in

Worth knowing

Headline breakage and split-end claims rely on using several products from the line
$37 for 300 ml is expensive for a daily shampoo
Contains an AHA, so the label warns about increased sun sensitivity

How it scored

The breakdown.

Five factors, weighted for formulas. Here’s our working.

7.7Good

Beauty score out of 10. Brands can’t pay for placement — ever.

Results30%7.9
Reviewers with bleached and colored hair report noticeably softer, smoother lengths, but the published breakage and split-end figures apply to the full multi-product system.
Formula & ingredients20%7.8
A mild glucoside and isethionate cleanser at an acidic pH with panthenol and silicones; citric acid is a sensible pH and conditioning choice, though its bond claims are brand-defined.
Texture & experience15%8.0
A pleasant citrus-floral scent and good slip; the AHA sun-sensitivity warning on the label is an unusual extra for a shampoo.
Value20%7.0
$37 for 300 ml sits at the high end of salon shampoos, with a 500 ml refill and liter size available to lower the cost per wash.
Community love15%8.0
One of the most-discussed salon repair lines, with thousands of retail reviews and frequent recommendations from hairdresser creators.

Beauty profile

Inside the bottle.

Texture

Sulfate-free, acidic-pH shampoo (Ulta listing)

Format

Shampoo

Fragrance

Contains fragrance — Fresh citrus and floral: orange, bergamot and marine top notes; freesia, peach and rose; cedarwood, sandalwood and amber (Ulta listing)

Size

10.1 fl oz / 300 ml

Key ingredients

Ingredient encyclopedia →

What’s in it: Citric acid (an AHA) is the brand's bond-reinforcing ingredient within a 'bonding care complex'; pH-balancing formula targets hair's 4.5–5.5 range. No percentages disclosed.

How to use

Apply a quarter-sized amount to wet hair, lather and rinse, increasing the amount for thicker hair; follow with Acidic Bonding Concentrate Conditioner and Leave-In Treatment.

Free from (brand-stated)

sulfates

Claims & certifications

Sulfate-free

Full ingredient list (INCI)27 ingredients · key actives highlighted · as listed by the brand

Aqua/Water/Eau,
Decyl Glucoside,
Sodium Cocoyl Isethionate,
Cocamidopropyl Betaine,
Citric Acid,
Sodium Hydroxide,
Panthenol,
Glycerin,
Dimethicone,
PEG-150 Distearate,
Ppg-5-Ceteth-20,
Sodium Benzoate,
Sodium Chloride,
Peg-55 Propylene Glycol Oleate,
Propylene Glycol,
Carbomer,
Parfum/Fragrance,
Coco-Caprylate/Caprate,
Polyquaternium-67,
Salicylic Acid,
Amodimethicone,
Sodium Phytate,
Glycol Distearate,
Coco-Betaine,
Acrylates/Beheneth-25 Methacrylate Copolymer,
Limonene,
Trideceth-6.

Formulas change. Always check the packaging, and patch-test if your skin is reactive.

Official product page

Creator video reviews

Watch it in action.

Real reviews, try-ons and wear tests from independent creators — verified with TikTok and YouTube and labelled when sponsored.

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Price & value

Is it worth it?

Typical price

$37.00

for 10.1 fl oz / 300 ml

Per ounce

$3.65

DrugstoreMid-rangePrestigeLuxury

Right around the going rate per ounce for wash day. Our value score: 7.0/10 for a mid-range pick.

Price checked November 2026 at a non-Amazon retailer. Prices change — retailers show the current one.

Where to buy

Check price on Amazon Buy from the brand$37.00 USee it at Ulta

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Community

What members noticed.

Ratings, skin types and the benefits people actually saw — logged on the Benefit Wheel.

No member ratings yet.

Tried it? Your score — and your skin or hair type — helps the next person decide.

Highlighted: what it’s built to do.

Discussion

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FAQ

Good questions.

Is Redken Acidic Bonding Concentrate Shampoo sulfate-free?

Yes. Redken and Ulta describe it as sulfate-free; it cleanses with decyl glucoside, sodium cocoyl isethionate and cocamidopropyl betaine.

Does it rebuild bonds like a bond builder?

Redken says citric acid helps reinforce weakened bonds, but the shampoo does not contain a patented maleate-type bond builder. Its published results, such as 2x less breakage, are for the shampoo and conditioner used together.

Why does the label mention sunburn?

The formula contains an alpha hydroxy acid, so the listing carries an AHA sunburn alert advising sun protection while using the product and for a week afterwards.

How much should I use?

Redken suggests starting with a quarter-sized amount on wet hair and increasing it based on hair type, then following with the matching conditioner and leave-in.

Sources we checked (5)