Best Conditioners for Thinning Hair: 8 Lightweight Picks

How to choose a conditioner for thinning hair

• Look for words like lightweight, weightless or volumizing. Bumble and bumble, Living Proof, Briogeo and Nioxin all describe lightweight formulas, and fine hair tends to look flat when a conditioner is heavy.
• Check the hair type on the page. Living Proof names fine, flat or thin hair, Bumble and bumble's listing says fine to medium straight or wavy hair, and Nioxin says System 2 is for natural, untreated hair, with Systems 3 and 4 for dry or color-treated hair.
• Match the system to your routine. Nioxin sells conditioners as one step of a shampoo, conditioner and leave-on routine, and says to use the full system at least three times a week. Single-bottle conditioners from OGX, Biolage, Redken and Living Proof need nothing else.
• Read the free-from claims. Living Proof says its conditioner is silicone-free, sulfate-free and vegan, Briogeo says its conditioner is vegan, and OGX's listing says sulfate-free surfactants. Confirm the ingredient list if you avoid a specific ingredient.
• Set a budget. OGX and Biolage are the drugstore and everyday end, Redken, Bumble and bumble and Living Proof sit in the middle, and Briogeo, Nioxin and Kérastase are the prestige-leaning picks.
• Pair it with a matching shampoo only if you like the system. Several brands sell a matching shampoo, but a lightweight conditioner works with any gentle shampoo. Our shampoo guide for thinning hair covers those.

This guide covers cosmetic products that make hair look or feel fuller. No shampoo, conditioner or dry shampoo here is a treatment for hair loss. Sudden, patchy or heavy shedding, or a sore or itchy scalp, is a reason to see a dermatologist.

How to use a conditioner on thinning hair

1. Shampoo first, then squeeze the water out of your hair before conditioning, as the brands' directions assume you start after shampooing.
2. Apply the conditioner. Nioxin says to rub it from roots to ends, Briogeo says to massage it in evenly, and Living Proof says to spread it through the hair. If your roots go flat, many people keep conditioner to the mid-lengths and ends; check the label first.
3. Leave it on for the time the brand gives. Briogeo says up to two minutes; for the others, follow the bottle.
4. Rinse thoroughly, as Nioxin directs. Leftover conditioner is a common reason fine hair feels weighed down.
5. Skip heavy leave-in products if your hair goes flat, and use a light hand with anything left in.

8 picks and who each one suits

1. OGX Thick & Full + Biotin & Collagen Volumizing Conditioner

   Best for: Someone who wants a drugstore volumizing conditioner for fine hair.

   The Amazon listing describes a volumizing conditioner with sulfate-free surfactants that gives hair volume and body for 72+ hours. It is the budget end of this list, and it is sold in more than one bottle size, so check the size before you buy.

   Check price on AmazonAdd to Amazon cart We may earn a small referral fee

2. Biolage Volume Boost Conditioner

   Best for: Someone who wants an inexpensive salon-brand conditioner for fine hair.

   The Amazon listing describes weightless moisture, shine and volume, detangling for fine hair, and a vegan, paraben-free formula with soy protein and polymers. Like most of this list, it is a conditioner for fine hair rather than a product made for thinning.

   Check price on AmazonAdd to Amazon cart We may earn a small referral fee

3. Redken Volume Injection Conditioner

   Best for: Someone with fine, flat hair who wants a salon conditioner built around volume.

   The Amazon listing sells it as a conditioner for fine hair. We could not open Redken's own page, so this pick rests on the listing title and the product name, and the brand's full directions are not summarized here.

   Check price on AmazonAdd to Amazon cart We may earn a small referral fee

4. Bumble and bumble Thickening Volumizing Conditioner

   Best for: Someone with fine to medium straight or wavy hair who wants a salon conditioner that detangles.

   The Amazon listing describes a lightweight formula that adds volume and hydration, softens and detangles, is color safe, and suits fine to medium straight and wavy hair. The listing name says Thickening Volumizing Conditioner, so look for that wording on the bottle.

   Check price on AmazonAdd to Amazon cart We may earn a small referral fee

5. Living Proof Full Conditioner

   Best for: Someone with fine, flat or thin hair who wants a silicone-free conditioner.

   Living Proof says Full Shampoo and Conditioner are for anyone with fine, flat or thin hair, and says the conditioner delivers 2x the volume with every wash when used with Full Shampoo, compared with untreated hair. It describes shine, sleekness and detangling without silicone, and says the formula is sulfate-free, vegan and safe for color-treated hair. Its directions are short: apply after Full Shampoo, spread through hair and rinse.

   Check price on AmazonAdd to Amazon cart We may earn a small referral fee

6. Briogeo Destined for Density Caffeine + Biotin Peptide Density Conditioner

   Best for: Someone who wants a lightweight conditioner marketed for hair that is losing density, from a vegan brand.

   Briogeo calls it a lightweight, density-boosting conditioner for fuller, healthier-looking hair that gives lightweight hydration and thicker-looking hair. It says it is for all hair types and textures concerned with thinning or loss of density, and that it is 97% naturally derived, vegan and Leaping Bunny certified cruelty-free. Briogeo's directions: after shampooing, apply and massage in evenly, leave in for up to two minutes, then rinse. Treat the page's other claims as the brand's marketing, not something this guide covers.

   Check price on AmazonAdd to Amazon cart We may earn a small referral fee

7. Nioxin System 2 Conditioner

   Best for: Someone with natural, untreated hair who prefers a system built for thinning-looking hair.

   Nioxin describes System 2 Conditioner as a lightweight conditioner that helps provide hair resilience and hydrates scalp and hair from root to tip, and it is sold as part of a Scalp + Hair Thickening System. Nioxin's page says to rub the conditioner from roots to ends and rinse thoroughly, and says System 2 is designed for natural, untreated hair; it points dry or color-treated hair to Systems 3 and 4. Nioxin sells several System sizes and numbers, so confirm the System number on the listing.

   Search Amazon for Nioxin System 2 Conditioner We may earn a small referral fee

8. Kérastase Densifique Fondant Densité Conditioner

   Best for: Someone who wants a prestige-brand conditioner for fine, thinning hair.

   The Amazon listing for the Kérastase Densifique conditioner describes a thickening conditioner formulated with hyaluronic acid, hydrating, for fine and thinning hair. We could not open Kérastase's own page, so check the bottle for the brand's directions and wait time.

   Search Amazon for Kérastase Densifique Fondant Densité Conditioner We may earn a small referral fee

Frequently asked questions

What is the best conditioner for thinning hair?

It depends on your hair and budget. OGX and Biolage are drugstore-level options, Living Proof and Bumble and bumble are lightweight salon-brand ones, and Briogeo, Nioxin and Kérastase market conditioners for thinning hair. None treats hair loss.

Will conditioner make thinning hair fall out more?

Conditioner does not cause hair to fall out, but a heavy one can make fine hair look flat. Hair that is shedding more than usual, in patches or suddenly is a reason to see a dermatologist rather than switch products.

Should I put conditioner on my scalp if my hair is thin?

Directions differ. Nioxin says to rub its conditioner from roots to ends, while many people keep conditioner to the mid-lengths and ends so roots stay lifted. Follow your bottle's directions and adjust if your roots go limp.

Do I need a matching shampoo and conditioner?

No. Brands such as Living Proof, Nioxin and Briogeo sell matching sets, but each conditioner works after any gentle shampoo. A matching pair is a convenience, so choose the conditioner first.

When should I see a dermatologist about thinning hair?

The American Academy of Dermatology lists several types of hair loss and describes dermatologists as doctors who specialize in the skin, hair and nails. See one for sudden, patchy or heavy shedding, or a sore or itchy scalp.

How we chose

This guide is desk research. We read Living Proof's, Briogeo's and Nioxin's own product pages and the American Academy of Dermatology's hair loss page. Redken's, Bumble and bumble's, Kérastase's, OGX's and Aveda's sites did not open for us, so for Redken, Bumble and bumble, OGX, Biolage and Kérastase we relied on Amazon listing titles, written here as "the listing says". We did not test any of these products; every claim is the brand's or a listing's, not a result we measured, and these are cosmetic conditioners, not medical treatments. We left out any product whose page leans on hair-loss claims.

Listings, sellers and sizes change quickly. At time of writing (November 1, 2026), the "Check price on Amazon" buttons for OGX, Biolage, Redken, Bumble and bumble, Living Proof and Briogeo went to exact listings, new and in stock, sold by Amazon.com or the brand's own store. The Nioxin and Kérastase buttons open an Amazon search because of multiple System sizes and listing titles that do not name the exact product. Confirm size, version and seller before you buy.

Sources

• Living Proof Full Conditioner
• Briogeo Destined For Density Caffeine + Biotin Peptide Density Conditioner
• Nioxin System 2 Conditioner
• American Academy of Dermatology: Hair loss

Related guides

• Best conditioner for fine hair: more picks if your hair is fine but not thinning.
• Best lightweight conditioner: conditioners that avoid a heavy, weighed-down finish.
• Scalp care for thinning hair: gentle scalp-care habits that go with these conditioners.
• How to add volume to thinning hair: styling steps beyond conditioner.
• Hair tools for thinning hair over 50: brushes and tools that suit fine, thinning hair.
• Best shampoo for fine hair: a gentle shampoo to pair with these conditioners.
• Best shampoos for thinning hair: the matching shampoo guide.
• Best dry shampoo for thinning hair: root lift between washes.