The edit
Deep Conditioner
17 of the 673 products we track match this, spanning mid through upper. Ranked by what actually sells, not by what pays us most.
Tap Check price on any pick to see today's price on Amazon — the list is ranked by what people actually buy.
For oily skin — one of the deepest review bases here at 2,719.
KÉRASTASE deep conditioner
Holds 4.5 stars across 575 reviews.
Rated 4.7 against a 4.4 median.
For oily skin — 4.6 stars across 599 reviews.
17 of the 673 hair we track fit this page. They are ordered by what people are actually buying — sales volume first, then how deep the review base is behind the rating. We haven’t tested them in a bathroom; nobody honestly has tested 673. What we can do is read the numbers straight and tell you what each one is.
— The Full Hair System EditorsThe shortlist
We don't publish prices — Amazon changes them constantly and a stale number helps nobody. Tiers below show where each product sits; tap through for the live price.
How we narrowed it down
We started with every one of the 673 hair in our catalogue and kept the 17 that genuinely fit "deep conditioner". Ranking is by real monthly sales volume and review depth, so the top of this list is what people are actually buying rather than whatever carries the fattest commission.
The current pick is the Tea Tree Special Shampoo, Deep Cleans, Refreshes Scalp, For All Hair T, sitting in the mid tier and holding 4.6 stars across 2,719 reviews. Options here span mid through upper, and most cluster in the mid tier — useful context, because anything well below that is usually cutting something real.
We don't print prices anywhere on this site. Amazon moves them constantly and a stale figure is worse than none; the tier tells you roughly where a product sits and the link gives you today's number.
Review count matters as much as the star average. A 4.3 across several thousand reviews is a stronger signal than a 4.9 across nine, and we weight it that way.
All 17 matches
For oily skin — one of the deepest review bases here at 2,719.
KÉRASTASE deep conditioner
Holds 4.5 stars across 575 reviews.
Rated 4.7 against a 4.4 median.
For oily skin — 4.6 stars across 599 reviews.
For oily skin — rated 4.7 against a 4.4 median.
deep conditioner relaxed hair
For damaged hair — 4.4 stars across 472 reviews.
For curly hair — 4.6 stars across 337 reviews.
Living Proof deep conditioner
Holds 4.4 stars across 287 reviews.
For oily skin — 4.5 stars across 282 reviews.
For curly hair — 4.5 stars across 227 reviews.
For thick hair — 4.6 stars across 174 reviews.
Holds 4.5 stars across 309 reviews.
heat protectant hair
For damaged hair — 4.5 stars across 258 reviews.
For men — 4.6 stars across 215 reviews.
Celeb Luxury deep conditioner
Holds 4.6 stars across 136 reviews.
Holds 4.4 stars across 100 reviews.
Olaplex deep conditioner
Sold as a set — 4.4 stars across 100 reviews.