Pureology Strength Cure Conditioner has the best record for thinning hair, with 15 of 15 shoppers saying it softened and detangled their hair without weighing it down or making it look flat or thinner, though that group is small. Olaplex No. 5 Bond Maintenance Conditioner follows at 17 of 21, then Bondi Boost HG Conditioner at 9 of 11, while the last three each sit at 8 of 10. Each record counts just shoppers who said they have thin or thinning hair.
Updated . How we count
Share of reviewers who stated an outcome for thin hair. Ranked by the lower bound of a 90% confidence interval, so a product needs both a good share and enough reports to rank high.
Best record Pureology Strength Cure Conditioner 15 of 15 say it softened and detangled their hair without weighing it down or making it look flat or thinner See price & reviews on Amazon Praise and complaints are the points reviewers repeat most, shown as a share of each product's counted store reviews.
Pureology
Best for a nice scent
The scent earns praise in 48% of its 31 reviews, and 6% mention added shine.
No repeated complaints yet.
Olaplex
Best for a moisturizing feel
More shoppers stated a result for this conditioner than for any other here, 21 in all. Moisture gets a mention in 22% of its 59 reviews and added shine in 14%.
Bondi Boost
Moisture comes up in 14% of its 50 reviews and added shine in 12%, though 4% report build-up.
Pureology
Shoppers mention added shine in 18% of its 22 reviews.
OUAI
Its 2 misses said it left their thin hair weighed down or greasy, while 12% of its 16 reviews praise the scent.
No repeated complaints yet.
Vegamour
Praise for the scent appears in 40% of its 30 reviews, while 13% say it isn't moisturizing enough.
The 6 products ranked here carry 24,291 reviews at Ulta and Sephora. We searched them for thin hair and read the newest matching reviews, up to 40 per product and store, posted between Sep 2020 and Sep 2026.
A review counts only when the reviewer used the product themselves. We drop reviews written in exchange for a free product or a sweepstakes entry (0 on this page), and products that are no longer sold.
Ulta also shows reviews first posted on brands' own websites. They run much more positive than store reviews of the same products (across 19 products with both, 76% of brand-site reviewers said the product solved the problem, against 55% of Ulta shoppers), so we show them on product cards but never count them.
Because we searched for the problem, people who had it are overrepresented. Compare products with each other rather than reading a share as your own odds.
Skin type, skin tone and age splits use what reviewers chose on Sephora's review form (and age on Ulta's when given). We only show a split when enough reviewers fall on each side.
Amazon buttons appear only on products that most reviewers here say fix the problem (at least 60%, with enough reviews to trust it). Everything else gets no buy link.
An AI model labels each review against a fixed list of points, and we spot-check the labels before publishing. We publish counts, never the reviews themselves.
Pureology Strength Cure Conditioner has the best record (15 of 15), followed by Olaplex No. 5 Bond Maintenance Conditioner (17 of 21), Bondi Boost HG Conditioner (9 of 11), Pureology Hydrate Conditioner (8 of 10), OUAI Fine Hair Conditioner (8 of 10) and Vegamour GRO Revitalizing Conditioner (8 of 10). The ranking weighs how many shoppers stated a result, so Olaplex No. 5 Bond Maintenance Conditioner sits above Bondi Boost HG Conditioner even though Bondi Boost HG Conditioner has the higher share, at 82% against 81%. The last three share the same record, so treat them as a tie.
See a doctor or dermatologist for hair loss or sudden shedding, since a conditioner just changes how hair feels and looks. These records are about how each conditioner felt and looked on thin hair.
No. The counts are what shoppers with thin hair said after using each conditioner, not a lab test, so follow the label directions.
Every conditioner here except OUAI Fine Hair Conditioner is sold on Amazon by the brand or Amazon itself. OUAI Fine Hair Conditioner is sold there through third-party sellers, so check who the seller is. Pureology Strength Cure Conditioner, the leader, is also the best pick sold on Amazon.
HiveTried earns a commission when you buy through the Amazon buttons on this page. It never changes the ranking: the order comes from buyer reports only, and a product gets an Amazon button only when buyers here say it works.