# Olaplex No.3PLUS Complete Repair Treatment

> Olaplex describes No.3PLUS as the successor to No.3 Hair Perfector, with a three-minute pre-wash routine. It remains a rinse-out treatment before shampoo, rather than a leave-in conditioner.

- Canonical: https://thecastindex.com/beauty/olaplex-no-3plus-complete-repair-treatment
- Category: Hair
- Format: Pre-shampoo hair treatment
- Finish: Conditioned feel
- Best for: A short treatment step before washing
- Official: https://olaplex.com/products/olaplex-n-3plus-complete-repair-treatment-100ml
- Reviewed: 2026-09-08
- Method: evidence-led desk review of official specifications — not an implied hands-on test

The current successor deserves its own page: the shorter routine should not be confused with the original No.3 instructions.

## Selection evidence

2026 formula update: Olaplex’s 23 February 2026 comparison explains the change from No.3 Hair Perfector to No.3PLUS. The two products retain separate records here.

Source: https://olaplex.com/blogs/news/no3-vs-no3plus
Checked: 2026-09-08

## Who should consider it?

Consider a pre-wash treatment when you can make room for a separate step before shampooing. If you need immediate styling slip after washing, compare a leave-in instead. More treatments are not automatically a better routine.

## What should you check before buying?

Check whether your bottle says No.3 or No.3PLUS before applying instructions. Manufacturer repair claims are not a guarantee that damaged hair will behave like unprocessed hair.

## How to use it

1. Follow No.3PLUS directions to apply before shampooing.
2. Allow the specified three-minute treatment time.
3. Rinse, then shampoo and condition as directed on the bottle.

## Questions and answers

### Can I leave No.3PLUS in as a styling product?

No. Olaplex positions it as a pre-shampoo treatment that is rinsed out. A leave-in such as Redken Acidic Bonding Concentrate has a different place in the routine.

## Explore the category

https://thecastindex.com/beauty/category/hair