No. 4 Bond Maintenance Shampoo — Reddit Reviews
by Olaplex
Updated November 5, 2026
Bond-building shampoo for processed hair; softens strands, clarifies buildup, gets heavy fast.
What the community says
A concentrated cleanser with Bis-Aminopropyl Diglycol Dimaleate, oils, and amodimethicone, aimed at bleached, colored, or genuinely damaged lengths. It suits occasional rotation better than daily washing; fine or scalp-sensitive users often report dryness, grease, flakes, and buildup.
What this means for you
What people love
Watch out for
- Fine hair can end up flat, greasy, or coated
- Frequent washing can trigger scalp itch, dryness, and dandruff
- Protein-heavy routines can worsen brittleness, tangles, and shedding
Product details
Concerns
Product Traits
Hair Type
Where to buy
Real Reddit threads — 276 mentions across 29 threads
Olaplex No. 4 Bond Maintenance Shampoo on Reddit, in one place — 29 threads from r/Haircare, r/finehair and 4 more, summarized.
“i was recently gifted an olaplex giftbox with the 0 spray, 3, 4, 5, 8”
Mentioned
“The shampoo is what is causing the hair issues, because the shampoo product has a patent formula that penetrates the hair cuticle”
Cautionary
“Personally I use olaplex shampoo like twice a year that's it”
Cautionary
“I use olaplex shampoo and conditioner after bleaching for a few washing and then stop.”
Positive
“If I use it regularly my hair becomes strawlike and tangles something ridiculous.”
Positive
“I used the sprouts brand one for a long time, recently switched to olaplex”
Positive
“Shampoo without the smoothing agents”
Positive
“I use Olaplex 4 bonding shampoo, but my damage is mostly from bleaching.”
Mentioned
“Olaplex - like the whole care line No 0 - No 4.”
Mentioned
“Costco used to have Olaplex shampoo and conditioner in huuuge pump bottles.”
Positive
“MY HAIR HAD NEVER BEEN HEALTHIER!”
Positive
Dupes & Alternatives
Often paired with
Products Redditors use alongside this one
Olaplex
No. 5 Bond Maintenance Conditioner
Mentioned together in 78 threads
“I use olaplex bond maintenance shampoo no.4, conditioner no.5, moisture mask no.6, and their clarifying no.4c in my rotation.”
Olaplex
No. 0 Intensive Bond Building Hair Treatment
Mentioned together in 13 threads
“Olaplex No.0 Intense Bond Building Treatment 2. Olaplex No.3 Hair Perfector 3. Olaplex No.4 Bond Maintenance Shampoo”