6 Best Scalp Serums We Tested 2026, Approved by Dermatologists


An unbalanced scalp can lead to uncomfortable itching, and if this sentiment is all too familiar, we recommend this blend of charcoal, tea tree oil, and peppermint oil. It detoxes the scalp and helps get rid of inflammation and dandruff. Glamour’s Calle likes to use this serum after wash day because it helps control her oily scalp.

“I notice that after using this charcoal hair serum my hair doesn’t get oily as fast and it’s a nice way to refresh my scalp. It has a nice consistency that doesn’t feel too runny and even though it’s a dark color it’s not noticeable. I like the cooling sensation on my scalp, too.” —Jenifer Calle, Glamour senior commerce editor

  • Who it’s best for: Someone who deals with constant itchy scalp from dandruff
  • Addresses: Flaky, itchy scalp
  • Size: 1 fl oz.

Best for Hair Growth: Vegamour Gro Serum

Original video from Brigitt Early testing Vegamour GRO Serum

  • Pros: Lightweight formula that’s non-greasy; easy to apply in targeted areas like around the crown or ears
  • Cons: Pricey

Both Dr. Rambhia and Hope Mitchell, MD, board-certified dermatologist at Mitchell Dermatology, recommend this scalp serum, which provides major hydration and enhances hair growth over time. “This serum combines ingredients like mung bean, red clover, and curcumin to support scalp health and reduce inflammation, creating an optimal environment for hair growth. Its key compounds, including Capixyl (a proprietary ingredient) and peptides, help block DHT (the hormone that causes hair loss), stimulate follicles, and strengthen hair for fuller, healthier results,” says Dr. Rambhia.

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