This light spray contains a marine complex and omega-3 fatty acids to strengthen and thicken each hair strand over time. It also helps preserve hair color while making hair feel unbelievably soft.
Alterna Caviar Anti-Aging Miracle Multiplying Volume Mist, $28 at Sephora
Spritz this elixir on your scalp, and you'll find fewer strands in the drain. It contains a special ingredient called ana:tel that extends the hair growth phase so you lose fewer hairs each day, allowing it to grow fuller and thicker.
Viviscal Gorgeous Growth Densifying Elixir, $19.99 at Dermstore
Inspired by Strivectin skin care, this foam contains NIA-114 (a type of niacinamide), which balances the scalp and hair. Pea sprout extract helps plump up individual hair strands while a blend of other botanical extracts encourages the hair cycle to last longer.
Strivectin Hair Densifying Foaming Treatment, $44 at Sephora
Scalp Clarifying Serum
If your scalp is especially oily, the excess sebum could be contributing to hair thinning. This serum can help: It exfoliates and deeply cleans hair follicles with a zingy blend of menthol and peppermint, removing oil and clearing blockages.
Hairmax Revitalizer for Density, $18 at Kohl's
This spray acts like a "liquid bandage" reinforcing weak spots on each hair strand to reduce breakage. It also refreshes the scalp with menthol and contains UV absorbers to protect hair from the sun — a potential cause of thinning.
Bumble and Bumble Full Potential Hair Preserving Booster Spray, $60 at Sephora
Hair thinning is often directly related to aging, which the Living Proof Timeless line addresses. This mousse temporary thickens hair, making it look up the three times thicker, and it contains amino acids to nourish the hair and scalp.
Living Proof Timeless Plumping Mousse, $28 at Ulta
If your hair is thinning to the point that spritzes and mousses aren't cutting it, there's Harklinikken — a surprisingly chic hair clinic founded in Copenhagen in 1979. The services and products are finally available in the U.S., and the key is this extract, which is specifically formulated for each customer. The extract contains a blend of proteins and fatty acids, and with daily application you should see a major difference in the thickness of your hair in a few months.
Harklinikken Hair Extract, $7 at Harklinikken
If you have thin or thinning hair, you’ve probably tried every volumizing shampoo and mousse on the market. But unless you’re addressing the root cause at — quite literally — the scalp, you’re not preventing future hair loss and the hair you do have will continue to get finer over time.
Fortunately, there’s a new brigade of thinning hair treatments that have hit store shelves in recent months. Some plump up individual hair strands while others protect your hair from heat and environmental stressors that lead to thinning. But they all have one thing in common: They nourish the scalp and, therefore, treat thinning hair.
[ Next: How to Stop Your Hair from Falling Out ]