Did you know?
Why the shampoo and conditioner work as a pair, what is in each, and which set to buy
Did you know? A hair growth shampoo on its own leaves the job half done. The shampoo works on the scalp for three to four minutes; the conditioner is what stops the hair you already have from snapping off in the comb. That is why Watermans sell Grow Me® and Condition Me® as a pair: seven actives in the wash, caffeine, rosemary and the lupine protein active in the conditioner, and shea butter and olive oil for the lengths.
Most people searching for a hair growth shampoo and conditioner set have already worked out the thing the brands rarely say: the shampoo and the conditioner have different jobs, and thinning hair needs both. Here is what each one does, how to use them together, and how the sets compare on price.
Why use a hair growth shampoo and conditioner together?
Because they work on different parts of the hair. Grow Me® Shampoo goes on the scalp for three to four minutes, where its seven actives work. Condition Me® goes on the lengths, where it detangles, softens and closes the strand so less hair snaps in the comb or the towel. Thinning hair is lost from the scalp and from breakage, and the pair covers both.
This is why the set outsells the shampoo on its own. In our independent study of Grow Me® Shampoo, 83% of 122 people said their hair felt stronger and 79% said there was less hair loss when brushing.* The conditioner is what carries that through the lengths every wash.
What is in Condition Me® conditioner?
Condition Me® is a sulphate-free conditioner built around shea butter, olive oil and panthenol for the lengths, with caffeine, rosemary leaf extract and the hydrolysed lupine protein active carried over from the shampoo, so the scalp-side ingredients are in both halves of the routine. It is the one Watermans product that is not vegan, and we say so.
Use it on the mid-lengths and ends, not the roots. Leave it for one to two minutes while you rinse the rest, then rinse it out. Fine hair gets detangling without weight; coarse, curly and Afro hair can take more and leave it longer.
Why is shampoo on its own not enough?
A hair growth shampoo on its own looks after the scalp and leaves the lengths to fend for themselves. The lengths are where hair tangles, snaps and splits, and every snapped hair looks like a lost one in the plughole. Grow Me® and Condition Me® together cover the scalp and the strand in one wash.
| What to look for | A hair growth shampoo on its own | Grow Me® Shampoo |
|---|
| Scalp actives in the wash | Depends on the shampoo | Seven, left on for 3 to 4 minutes |
| Actives in the conditioner | No conditioner | Caffeine, rosemary and the lupine protein active |
| Lengths and ends | Left to fend for themselves | Shea butter, olive oil and panthenol every wash |
| Breakage in the comb | Unchanged | Detangled and closed every wash |
| Sulphate-free | Varies | Both halves |
| Price for the pair | Shampoo only | £26.95 for 250ml of each |
| Guarantee | Varies | 90 Day Money Back Guarantee on both |
How do you use a hair growth shampoo and conditioner set?
Shampoo first: massage Grow Me® into a wet scalp with your fingertips and leave it on for three to four minutes, then rinse. Conditioner second: Condition Me® on the mid-lengths and ends, kept off the roots, for one to two minutes, then rinse. Four to five washes a week, and judge it at 90 days.
If you cannot wash four to five times a week, Grow More® Elixir keeps the scalp actives working overnight between washes, which is why the three-step Boost Set exists.
Which shampoo and conditioner set should you buy?
The 250ml pair at £26.95 is the place to start and the one the 90 Day Money Back Guarantee was designed around. The 2 + 1 bundle suits people who wash more than they condition, the 2 + 2 bulk bundle is the best price per wash, the Boost Set adds the overnight elixir, and the one-litre salon sizes are for households where everyone uses it.
Prices checked on 12 November 2026. Subscribers save 15% on every delivery.
Is it the best shampoo and conditioner for hair growth?
It is the pair that was built to be used together, tested as a shampoo on 122 people, made in the UK, sulphate-free, and backed by a 90 Day Money Back Guarantee. No shampoo and conditioner grows hair, and we do not say this one does. What most people in our study said is that their hair looked fuller, felt thicker and felt stronger.*
Watermans products are cosmetics. They care for the scalp and the hair you have, and they do not treat hereditary or medical hair loss. If hair is coming out in patches or handfuls, see your GP first.