I have been a professional hairdresser for twelve years. I should not have made this mistake. I am writing about it because I see clients make the same mistake every week, and the only way to short-circuit it is to be honest about doing it myself.
I bought Olaplex No.0 in February. I had bleached the ends of my hair badly during a colour appointment that went longer than it should have. The bleach had taken most of my mid-lengths to a paler tone than intended, and the texture had gone from soft to that particular crunch only over-processed hair has. I needed help.
I went to my closest beauty retailer, picked up Olaplex No.0, paid AU$60, and went home expecting it to fix my hair. It did not. After three uses, the hair felt slightly less crunchy and otherwise unchanged. I assumed I had bought the wrong product, or that Olaplex was overhyped, or that bleach damage at this level was not fixable. All three of these conclusions were wrong.
What I had actually done was buy the primer for the treatment without buying the treatment. Olaplex No.0 is a pre-step. It opens the hair cuticle and prepares it to receive the bond-building actives in Olaplex No.3, which is the real workhorse of the at-home Olaplex range. Used together, the pair is genuinely effective. Used alone, No.0 does roughly what a pre-shampoo conditioner does — slightly improves texture, no structural change.
I knew this. I have explained this to clients dozens of times in the salon. I just did not pay attention to the back of the box because I was upset about my hair and wanted to feel like I was solving the problem.
This is, I think, the most common pattern in damaged-hair recovery. People buy a product in distress, do not read the protocol, and then conclude the product does not work. Olaplex absolutely does work. The protocol matters. No.0 then No.3, left on for ten minutes minimum, repeated weekly for at least a month before you assess the result.
If your hair is mildly damaged from heat or colour, Olaplex No.3 alone — AU$45 — is the right entry point. If it is significantly damaged from bleach, you need No.0 and No.3 used in sequence, weekly, for six to eight weeks before you will see the change.
Buying No.0 by itself is not a mistake the brand asks you to make. It is a mistake you make at the shelf. The fix is to put it back and either buy the full pair or, if the budget will only stretch to one product, buy No.3.