No. 0 Intensive Bond Building Hair Treatment — Reddit Reviews
by Olaplex
Updated November 3, 2026
Bis-Aminopropyl Diglycol Dimaleate treatment strengthens fragile, overprocessed hair; shedding reports complicate the…
What the community says
A watery pre-treatment built around Bis-Aminopropyl Diglycol Dimaleate for bleached, fragile hair, usually paired with a follow-up treatment and left on about an hour. It can improve strength and smoothness, though hair-fall and scalp-sensitivity reports make YMMV serious.
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Real Reddit threads — 19 mentions across 15 threads
Olaplex No. 0 Intensive Bond Building Hair Treatment on Reddit, in one place — 15 threads from r/HaircareScience, r/Wavyhair and 2 more, summarized.
“When I used Olaplex #0 and #3 and I started to feel like I was getting sick so I didn't dry my hair.”
Mentioned
“The next day I had beautiful curly hair.”
Mentioned
“I then used the no. 0/3 combo and it felt stronger and smoother.”
Positive
“Olaplex^(®) showed superior thickness and the highest tensile strength and extensibility”
Positive
“Olaplex #0 is basically just Bis-Aminopropyl Diglycol Dimaleate, their patented active ingredient, and water”
Positive
“The paper is a little weird though because it tests k18 and Olaplex^(®) N°0”
Positive
“For yesterday’s results I was doing a repair routine:”
Positive
“- Olaplex No. 0 + No. 3”
Positive
“Left in for an hour. Rinsed”
Positive
“Olaplex 0 and 3 didn't do a bad job but K18 really changed the feel of my hair.”
Mentioned
“First, Olaplex. Not just number 3, which I'd tried before, but number 0, number 3, AND number 6.”
Positive
“So the prep (number 0), the mask (number 3), and after showering”
Positive