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There's a lot of advice out there about hair growth!
From how to prevent shedding, to what causes hair loss, and of course how to grow more hair, it's one of the buzziest beauty topics for a reason. One thing experts can agree on? Healthy hair all starts with a healthy scalp!
- Best scalp serum on sale: Dove Derma Scalp Density Boost 3-in-1 Scalp Serum ($9.92, reg. $12.99)
- Best hair oil on sale: Mielle Organics Rosemary & Mint Hair Oil ($8.73, reg. $9.99)
- Best conditioner on sale: VIRTUE Flourish Conditioner ($27.60, reg. $46)
"When follicles are inflamed, clogged, or undernourished, hair can become weaker, shed more easily, or grow more slowly," board-certified trichologist Aga Tompkins previously shared with E!.
We found top-rated products that aim to build a healthy hair routine and lessen hair loss, all on sale right now during Amazon's Summer Beauty Event. Because who wants to wait until Memorial Day Sales for prices to drop?
Read on for more hair growth advice straight from the experts, glowing shopper reviews, and to shop.
VEGAMOUR GRO Hair Serum
Reduce signs of shedding thanks to this serum, made with plant-based phyoactives to improve hair wellness, soothe the scalp and increase the appearance of hair density and thickness.
Shoppers Say: "I'm pretty impressed with this product and this brand. I was embarrassed because my hair was so thin you could see my scalp in places. Now you can just barely see it! I think it will continue to improve. My hair dresser has noticed that my hair feels thicker and not as fine."
Dove Derma Scalp Density Boost 3-in-1 Scalp Serum
Got a dry scalp? Regenerate the protective moisture barrier to strengthen your roots and provide a healthy foundation for hair growth.
"Just like facial skin, the scalp should feel comfortable, hydrated, and resilient, not tight, itchy, overly oily, or flaky," board-certified trichologist Aga Tompkins shared. "When the scalp environment is healthy, hair is able to grow stronger, shinier, and more consistently."
BondiBoost HG Lock Drops Daily Hair Serum
Fast-absorbing and non-greasy, this serum reduces shedding thanks to a bio-tanical blend that keeps your scalp hydrated and roots boosted.
Shoppers Say: "If you’re thinking about getting this, get it. As someone with the long hair constantly have hair all over me this is significantly helped with shedding. I don’t have to unclog my shower drain much at all anymore. I rarely ever have hair all over my clothes. This stuff actually works."
Aga Tompkins explained that "targeted scalp treatments" are a part of the puzzle for healthier hair. "Hair growth begins at the follicle, so scalp health directly impacts hair length, strength, and density."
Celeb-Loved
Mielle Organics Rosemary & Mint Hair Oil
This celeb-loved oil features a nutrient-rich blend of biotin, mint, and essential oils to support your scalp and strands from root to tip. The formula encourages natural thickness and infuses moisture into your scalp.
Dr. Sheila Farhang, dermatologist, recommends looking for products with ingredients including: peptides, keratin, saw palmetto, rosemary oil, pumpkin seed oil, and FDA-approved minoxidil. And says that consistency and patience are key to results: "It takes time to see results. I would give any recommendations at least 6 months to start seeing a difference although some may see results sooner."
Rogaine for Women 5% Minoxidil Foam
Minoxidil is the only FDA-approved ingredient for hair growth, and helps to maintain hair density, treat thinning hair and hereditary hair loss, and support fuller regrowth. This four-month, unscented foam supply has clinically proven results.
Shoppers Say: "It works! In November 2025 I was shredding hair daily by the handful. I started using this product nightly. I have very little hair shedding now (January 2026) and thicker healthier hair. It takes time and consistency to see real results. I suggest to perhaps try a single bottle first to check for allergies or other reactions before buying the double pack. If concerned about having to do this indefinitely, think of it like putting moisturizer on every night. It becomes a simple daily routine to keep a nice lock of hair on your head!"
Soapbox ProGRO Density+ Scalp & Hair Growth Serum
This serum is formulated with a blend of botanicals and studied ingredients to support healthier-looking hair from root to tip, improving the look of density without weighing hair down or leaving a greasy look/residue behind.
How We Choose
The E! Insider Shop editors and writers search the internet to find the best products out there. We interview expert sources, comb through customer reviews, and use our own personal experiences to make shopping easier for our readers.
As an editorial team, we independently create content and determine coverage based on research, reporting and what we think our readers would like to read about. The goal of our content is to provide a service and inform readers who are on the hunt for the latest products to help make their life better. Items are sold by retailer, not E!. Pricing and availability are accurate as of publish time.
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