The Best Hair Serum For Thicker, Fuller Locks

A good hair serum can help you grow more thick and full locks. The best ones contain ingredients like peptides, keratin, basil root extract and pea sprout extract to support and strengthen the existing hair follicles while encouraging new growth.

This serum is packed with nourishing oils including safflower, moringa and castor seed to hydrate your scalp. It also contains ashwagandha to soothe the scalp and boost thickness.

1. Kerastase Nutritive Lait Vital

Kerastase Nutritive Lait Vital is a high-nutrition ultra-light detangling conditioner, specifically formulated for dry fine to medium hair. Its white creamy gel texture is enriched with lipids and vitamins to provide intense nourishment and detangling while hydrating the hair. Its formula protects against external aggressions and reinforces the natural hydro-lipid barrier for stronger hair structure.

Apply a quarter-size amount to washed and towel-dried hair distributing evenly throughout best hair serum for hair growth the lengths and ends of the hair. Leave on for 2-3 minutes and emulsify before rinsing.

2. Revela ProCelinyl Hair Growth Serum

Revela uses a patented ingredient, ProCelinyl, to deliver results in this hair growth serum. It’s formulated with aloe vera, caffeine and anti-inflammatory saw palmetto extract to help stimulate healthy growth and prevent thinning hair.

The brand uses an algorithm to test thousands of molecules on real hair follicles before zeroing in on this patent-pending formula. It reportedly optimizes follicle health to increase daily growth by 50% and promotes more consistent results than other ingredients on the market. It’s also oil-free and super lightweight, so it won’t leave a greasy feel.

3. Biotinoyl Tripeptide-1 Scalp Serum

A multi-tasking serum that promotes hair density while revitalizing skin. This product has been formulated to address aging and hair imbalances at the molecular level, delivering visible and long-lasting results.

The peptide blend uses the powerful vasodilator apigenin to increase blood flow and promote follicle health, while acetyl hexapeptide-8 helps stimulate collagen production and reduce the appearance of fine lines and wrinkles. Visible results may be seen within 2-4 weeks and full results within 3 months with consistent use. Free of toxins and hormones, this product is safe for everyday use.

4. Biotinoyl Tripeptide-3 Scalp Serum

A peptide serum that promotes hair density and boosts thickness. It tones and stimulates follicles, helping to thicken your locks for the Rapunzel-esque tresses you’ve always wanted.

This oil-free serum is enriched with Red Clover and Baicalin to encourage healthy hair growth while the 5% biomimetic peptide blend helps visibly minimize thinning. It also features 1% Hyaluronic Acid and a proprietary Celery Seed Extract for itch-relief.

Apply a generous amount to three separate sections of your scalp, then massage the product in. Use daily for best results.

5. Biotinoyl Tripeptide-4 Scalp Serum

Nourish your scalp and hair from root to tip for visibly thicker strands with this peptide-rich serum. It’s formulated with 5% Capixyl and Eastern herbs like saw palmetto, fo-ti root extract, pterocarpus marsupium and baicapil to stimulate the follicles for thicker, fuller and healthier hair.

This water-light formula also contains 1% Hyaluronic acid for instant hydration and proprietary celery seed extract for itching relief. It is sulfate, paraben, mineral oil and silicone-free. It’s also non-sticky and leaves no residue.

6. Biotinoyl Tripeptide-5 Scalp Serum

This non-greasy serum is formulated with the benefits of capixyl, redensyl and acetyl terapeptide HAIR STYLING to reduce hair fall and promote healthy hair growth. It also nourishes the scalp to help it look thicker and healthier.

This product is vegan, sulfate free, phthalate free and paraben free. It promises to stimulate follicles to switch from resting to growing phase, and boost cell renewal to naturally activate thicker-looking hair. It also promises to block DHT, improve scalp health and prevent premature graying. The product is suitable for all hair types.

7. Biotinoyl Tripeptide-6 Scalp Serum

Packed with copper peptides, this serum helps boost the size of hair follicles and enhances your tresses’ natural texture. It also helps reduce split ends and promote blood circulation for healthy hair growth.

It’s like a frontline of defense for your scalp. This peptide-powered formula stimulates the follicles to prevent hair loss and encourages regrowth of longer, thicker eyebrows. It includes growth-stimulating niacinamide, hydrating pentavitin, and apple stem cells that help reduce oxidative stress.

It also has DHT blockers and extracts of stinging nettle and birch bark to nourish the scalp. It’s non-greasy and lightweight.

8. Biotinoyl Tripeptide-7 Scalp Serum

This clinically-studied leave-in scalp serum nourishes the hair and scalp to help promote thicker hair growth. It contains powerful peptides, including Copper Tripeptide-1, GHK-Cu, Capixyl, and Acetyl Hexapeptide-8 to stimulate the scalp microenvironment and increase hair density.

Burdock Root Extract and Biotin strengthen the hair shaft, while Aloe Leaf and Hydrolyzed Wheat Protein soothe the scalp. Our formula has a fresh scent with notes of citrus and botanicals.

9. Biotinoyl Tripeptide-8 Scalp Serum

Revitalise thinning hair with this natural, multi-peptide serum. The formula helps boost the density of hair while preventing further thinning by targeting each individual hair follicle.

This scalp and hair growth serum contains a concentrated blend of proven peptides including Biotinoyl Tripeptide-1 to increase the speed of new follicle development. It also includes Acetyl Tetrapeptide-3 to strengthen the hair shaft and prevent breakage.

The formula also features 1% Hyaluronic Acid to hydrate the scalp and Celery Seed Extract for itchy scalp relief. Lightweight and non-greasy, it is absorbed into the scalp without leaving a residue.

10. Biotinoyl Tripeptide-9 Scalp Serum

Designed to refuel hair that’s experiencing noticeable thinning for thicker, denser-looking and stronger-feeling hair. It includes a special Superpower blend that delivers results you can see and feel. Plus it’s vegan, cruelty-free and paraben-free.

While this product is certainly an option for those looking to stimulate significant new growth, it may not be a good fit for everyone. It also requires consistent use for the best results. And it can be pricey for some. Still, it is a great choice for those looking to keep their existing hair healthy.