Benable — create shareable lists of things you recommend!
E.g., products you love, local businesses, travel recs - you can add anything to a Benable list!
The Scalp Serum Everyone's Obsessed With: 15 Cult Luxury Scalp Treatments & Thickening Serums Worth the Splurge
15
items 
The splurge scalp treatment: a lightweight serum from the Augustinus Bader line, made to be used as part of a scalp-care routine for the look of fuller, healthier hair. Pricey, but this is the luxury pick of the list.
Augustinus Bader Women's The Scalp Treatment
Kérastase's scalp and hair concentrate from the Initialiste line, a leave-in meant to support the look of thicker, stronger hair at the roots. A salon-brand step up from drugstore scalp serums.
KERASTASE Initialiste Scalp & Hair Concentrate
OUAI's balancing scalp serum is the pretty, fragrance-forward option in this lineup, made to keep the scalp feeling fresh between washes. Good if you want scalp care that feels as nice as your styling products.
OUAI Scalp Serum - Balancing Hair Serum (2 Fl Oz)
Obagi's Nu-Cil BioStim is a biotin-containing hair and scalp serum from a dermatology-backed skincare brand. At $100 it's the clinical-looking splurge here, so it's one for people who treat their scalp like skincare.
Obagi Nu-Cil BioStim Hair Scalp Serum with Biotin
K18's FutureIQ is a hair-plus-scalp serum from the brand behind the viral molecular repair mask. It's the most expensive pick on this list at $120, so I'd start with a cheaper option unless you already love K18.
K18 FutureIQ Biomimetic Longevity Hair Serum
Rossano Ferretti's Vita is a rejuvenating serum for scalp and hair from a luxury Italian salon brand. It's a high-end, texture-focused pick for anyone who wants thicker-looking, stronger hair.
Rossano Ferretti Vita Rejuvenating Hair Serum
Vegamour's GRO Hair & Scalp Serum is the plant-based, mid-price pick, and it's unisex. A popular first step into scalp serums without going full luxury.
VEGAMOUR GRO Hair & Scalp Serum for Women & Men
Colleen Rothschild's Renew & Replenish is a hydrating scalp serum from a skincare-first brand. It's pitched at scalp comfort and a healthier-looking base for hair, not just growth claims.
Colleen Rothschild Renew & Replenish Scalp Serum
Living Proof's Scalp Care Dry Scalp Treatment is aimed at flaking and itching rather than growth. Pick this one if scalp comfort is the real problem. At about $29 it's one of the more approachable salon-brand options.
Living Proof Scalp Care Dry Scalp Treatment 3.4oz
Kérastase Genesis is a daily strengthening serum aimed at hair that feels weak or prone to breakage. It's a lighter, everyday leave-in rather than a scalp treatment, so it pairs well with the Initialiste concentrate above.
Kerastase Genesis Hair Serum - Strengthening
Divi's scalp serum is a 30ml bottle made for thinning hair, with a nourishing formula the brand says was clinically tested. A mid-to-high price for the size, so it's for people committed to a scalp routine.
Divi Scalp Serum for Thinning Hair, 30ml, Pack of 2
Act+Acre's Stem Cell Scalp Serum is a cult scalp-care brand's serum aimed at reducing shedding. It's a leave-on step for people who already do a scalp cleanse and want a dedicated treatment after it.
Act+ Acre Stem Cell Scalp Serum 2.2 fl oz
The viral budget pick: The Ordinary's Multi-Peptide Serum for Hair Density is $24 and built to make hair look thicker and fuller. If you only try one serum from this list, this is the low-risk one.
The Ordinary Multi-Peptide Hair Density Serum
Pacifica's Scalp Love Rosemary Mint Serum is under $10 and aimed at dry, flaky, itchy scalps. It's a soothing, hydrating pick rather than a thickening treatment, and a cheap way to start.
Pacifica Scalp Love Rosemary Mint Serum 2oz
The K-beauty entry: medicube's scalp serum with rosemary and PDRN comes in a 20ml bottle at about $13.50. It's the trendy, low-cost pick, so a fun one to try if you're curious about PDRN.
medicube Scalp Serum with Rosemary PDRN, 20ml