The 14 Best Hair Growth Serums to Help Prevent Thinning Hair in 2023

hair growth serums


Whether the cause is postpartum, aging, nutrition, stress, or a combination of these, hair thinning and hair loss are fairly common problems. And in a post-COVID world, they have only become more problematic; research has found that those who have had a COVID infection are four times more likely to develop hair loss than those who have not.

All this to say that products targeted at hair growth are more popular than ever. Scalp care, in particular, is having a moment, with Ayurveda-inspired scalp oils gaining popularity. Pinterest even named scalp care as one of their biggest forecasted trends for 2023. And while previously minoxidil-based products like Rogaine were the only viable options for thinning hair, serums for hair growth are now gaining popularity.

“There is limited data on hair growth serums for thinning hair compared to FDA-approved minoxidil, but some preliminary data is very promising,” said Minnesota-based dermatologist Jenny Liu. Ahead, we’ve rounded up 14 of the best hair growth serums on the market, including picks from Liu as well as celebrity hairstylist Clariss Rubenstein.

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Choice of skin


Hair Revitalizing Serum

Cut 1 fl. oz.
hair type All hair and scalp types
Active ingredients ProCelinyl

Ideal for alopecia

The INKEY List

Stimulating Caffeine Scalp Treatment

Cut 5 ounces/ 150 ml
hair type Straight, wavy, curly and kinky
Active ingredients Caffeine

Ideal for menopausal hair loss


Ectoin Calming & Thickening Scalp Serum

Cut 50ml / 1.7 fl oz
hair type Dry and thinning hair
Active ingredients Ectoine, Squalane, Amla, Pea Peptide

Choice of hairdresser


Defense against thinning hair

Cut 50ml / 1.7 fl. ounces
Active ingredients Caffeine, Melatonin, CAPIXYL, Biotin

Ideal for thinning points


GRO hair serum for thinning hair

Cut 1 ounce/ 30 ml
hair type Straight, wavy, curly and kinky
Active ingredients Turmeric, N. benthamiana, Red clover/ Mung bean

Best lightweight hair serum


The scalp serum

Cut 2oz
hair type All hair types, including colored hair
Active ingredients Blend of biomimetic peptides, hyaluronic acid, niacinamide and vitamin B3

Best Oil-Free Scalp Serum


potion of power

Cut 1.5 fluid ounces
hair type All hair types
Active ingredients Rice water extract, biotin and arginine

Ideal for quick results


Cold Processed Stem Cell Serum

Cut 2.2 fluid ounces/ 65 ml
hair type Straight, wavy, curly, curly
Active ingredients Swiss Apple Stem Cells, Aloe Vera, Bamboo Extract

Best Perfume


Hair Growth Serum

Cut 30ml
Active ingredients Redensyl and Capixyl

Best Hydrating Scalp Serum


Hydrating Scalp Serum

Cut 2 ounces / 60ml
hair type Straight, wavy, curly and kinky
Active ingredients Hyaluronic acid, red clover flower extract, peptides

Best Nighttime Scalp Serum

Native Agent

Holi(locks) Strengthening Serum for Hair Growth

Cut 1.7 fluid ounces
hair type Thin/Weak, Damaged/Dry
Active ingredients Follicusan, Capixyl, Redensyl, Beracare ARS Hair Serum, Pumpkin Seeds

Best Luxury Scalp Serum

Dr. Barbara Sturm

Anti-Hair Loss Scalp Serum

Cut 50ml
Active ingredients Glycerin, panthenol, purslane extract, cationic hyaluronic acid, sunflower seed extract, tara extract, camellia extract, European larch extract

Best Balancing Scalp Serum

Better not younger

Superpower+ Advanced Hair Densifying Scalp Serum

Cut 2.0 fluid ounces
hair type Thin
Active ingredients Rosemary Extract, Apple Cider Vinegar, Proprietary Superpower Blend

Best Affordable Scalp Serum

the ordinary

Multi-Peptide Serum for Hair Density

Cut 2.0 fluid ounces
hair type All hair types
Active ingredients Argenine, caffeine, castor oil

Frequently Asked Questions

What Ingredients Should You Look For In A Hair Growth Serum?

Several ingredients can help in the hair growth journey. “Caffeine and topical pumpkin seed oil extract have been shown in small studies to demonstrate efficacy, plant-derived flavonoids and other antioxidants possibly as well,” Liu says. Rubenstein echoes the caffeine recommendation and adds biotin to the list. “Biotin supports hair health. You need things that stimulate growth but also support new hair,” says the hairstylist.

How do you apply hair growth serums?

Typically, you apply directly to the scalp and then massage in (enjoy the extra moment of self-care). But be sure to read the instructions, as some products need to be washed, while others need to be left. Use once or twice a week or even daily depending on the product. “Depending on what’s in it, the suggested frequency of use may vary,” says Rubenstein.

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