01 / Hair
Before shampoo
The current No.3PLUS routine differs from the original No.3.
Olaplex — No.3PLUS Complete Repair Treatment ↗A routine with a purpose.
Decide whether you need a wash-day treatment, conditioning after washing or a styling effect. A pre-shampoo treatment is rinsed out; a leave-in stays on; a styling spray may need heat. The order and instructions are as important as the ingredient name.
Start with the job
Which one fits?
02 / Hair
After washing
A leave-in adds a conditioning step before styling.
Redken — Acidic Bonding Concentrate Leave-In Treatment ↗03 / Hair
A styled finish
Check whether the finish depends on blow-drying.
Color Wow — Dream Coat Supernatural Spray ↗Where it fits in your routine
Read the full product name and place it in the right part of wash day. Adjust quantity to density and length. Choose a repeatable routine instead of layering several treatments with incompatible directions.
Before you buy
No.3 and No.3PLUS are different formulas with different timings. A repair claim does not establish heat protection. Check each styling product’s instructions separately.
The hair edit
Explore the options.
Compare the role, finish and limitations. Each guide links to its original source and review date. Selection is editorial; no hands-on testing is implied. Product art, where shown, is illustrative.
2026 formula update
Olaplex · Hair
No.3PLUS Complete Repair Treatment
The current successor deserves its own page: the shorter routine should not be confused with the original No.3 instructions.
New to our edit
Redken · Hair
Acidic Bonding Concentrate Leave-In Treatment
Adds a leave-in option to a treatment-heavy hair shelf. Useful when you want a conditioning step that stays in during styling.
Olaplex · Hair
Bond Shaper Curl Rebuilding Treatment
Professional-only salon treatment — desk context for curl rebuilding; not a retail cart item on this site.
Olaplex · Hair
No.3 Hair Perfector
At-home bond care for Hair as silhouette weeks — weekly maintenance before shampoo, not a salon-only step.
Living Proof · Hair
Perfect Hair Day Dry Shampoo
Hair-as-silhouette support — keeps texture workable between call times.
Color Wow · Hair
Dream Coat Supernatural Spray
Humidity-proof polish for Hair as silhouette — the London line stays sleek when weather works against the outline.
K18 · Hair
Leave-In Molecular Repair Hair Mask
Leave-in peptide mask for Hair as silhouette — keeps chemically worked length workable between salon weeks.
Useful answers
Hair, explained.
Are all bond-care products used before shampoo?
No. Some are pre-shampoo treatments, others are conditioners, masks or leave-ins. Follow the exact product’s directions rather than using the range name to decide.
Does a leave-in replace a styling product?
Only if it also provides the styling effect you want. A conditioning leave-in and a product designed for hold, volume or humidity resistance may do different jobs.