Best Hair Loss Serum

The daily grind of hair washing, styling, and blow drying can take a toll on your scalp. This formula’s peptide blend and botanical extracts aim to reduce mechanical damage for stronger, healthier strands.

Designed for thinning hair, this clinically-studied serum has been shown to improve density with consistent use over time. Its blend of niacinamide, peptides, and caffeine help prevent excess shedding and strengthen existing strands.

1. Biotin Serum

Nourishing your scalp is key for healthy hair. These serum ampules from René Furterer are formulated to help combat thinning and graying hair. They contain a complex that minimizes the appearance of grays alongside peptides and phytonutrients to boost hair density. They are lightweight and water-based, which means they will not clog pores or cause unwanted buildup. The innovative applicator also ensures that no product is wasted and distributes it right to the roots. They can be used in conjunction with Rogaine or minoxidil for best results.

This nourishing serum is a favorite of many Vogue editors, and was crowned as one of the best hair loss serums by trichologist Bridgette Hill. It contains ashwagandha and other plant extracts, which promote healthy hair growth and reduce shedding, along with biotin and other hydrating ingredients. It’s an excellent option for people who are experiencing thinning hair as a result of stress, pregnancy, or other health changes.

This rejuvenating serum from ANARKHIA is infused with apple stem cells and a blend of other botanical wonders to support the scalp’s protective barrier while helping to nourish and strengthen strands. It’s a restorative blend that will transform your locks into a luscious cascade of brilliance.

2. Kerastase Nutritive Hair Serum

The hair serum for thin hair from Kerastase uses a unique blend of ingredients to stimulate follicles and promote healthy strands. The formula boasts a proprietary complex that minimizes grays and helps curb thinning while other actives like peptides and phytonutrients boost density, and this nighttime treatment works on all hair types.

The alcohol-free formula is formulated with a blend of plant botanicals that are designed to strengthen and protect strands from root to tip, plus biomimetic peptides that have been clinically proven to slow shedding and promote thicker hair in just 90 days. Plus, it has a non-greasy texture that will absorb quickly.

The hero ingredient here is the brand’s patent-pending ashwagandha extract, which is thought best hair loss serum to help reduce stress and quell anxiety. This supplement-inspired serum also contains a host of other plant-based ingredients, including nourishing hyaluronic acid, barrier-boosting niacinamide and bamboo and pea seed extracts to nourish and hydrate. One Amazon reviewer notes that after a few weeks, they noticed new growth and “thicker”-looking strands.

3. L’Oréal Professionnel Biotinoyl Tripeptide Complex

With a list of ingredients that reads like a face serum, this non-greasy formula uses a blend of plant extracts to nourish the scalp and encourage healthy hair growth. Ashwagandha, an adaptogen long used in Ayurvedic medicine to reduce stress, calm inflammation and quell anxiety, works alongside a copper peptide complex to stimulate follicles, while rosemary oil, hyaluronic acid and amino acids supply moisture.

A potent 5% Maleic Bond Repair Complex repairs weakened hair bonds caused by UV exposure, heat styling, colouring and treatments like straightening. It also delivers deep nourishment with Argan Oil, Squalane and Coconut Oil, which reduce frizz and enhance hair softness and shine. Enriched with Vitamin E, Beta Carotene and Carrot Root extract, it promotes overall hair health.

Designed to be used as a complement to PRP or microneedling treatments, this concentrated formula features the peptide Gly-His-Lys to stimulate follicles and enhance anagen phase (growth). Other key ingredients include oligopeptide 29, which has antimicrobial properties that go beyond traditional anti-dandruff treatments. It is also formulated with Capryloyl Glycine, which regulates excess scalp oil, unclogging pores for a balanced and healthy scalp environment.

4. L’Oréal Paris Professionnel RevitaLift Hair Growth Serum

We know, it’s one more step in your routine and another product that needs to be put on before you style your hair but, believe us when we tell you a good hair serum can change the game. Like face serums, they can help with specific hair concerns and even support your scalp’s health. This serum from trichologist Helen Reavey (a favorite of HAIR STYLING celebrities including Tilda Swinton and Alicia Keys) connects the dots between scalp health, thick hair, and growth with apple stem cells (extracted using a cold-pressing process so they’re more potent) and bamboo extract to bolster the skin barrier and microbiome.

This serum designed for thinning hair boosts hair density with regular use and has been proven to work within just six weeks. It works with patented stemoxydine and resveratrol to revive dormant follicles and reduce thinning over time. And, this pre-shampoo treatment is gentle enough for color-treated hair.

5. MDHair Hair Growth Serum

With this customizable hair growth serum, you’ll get a full-spectrum treatment with ingredients like saw palmetto berry extract and biomimetic copper peptides to stimulate the scalp. The kit also includes customized shampoo to cleanse the scalp and provide a supportive environment for hair follicles. It’s color-safe, fragrance-free, and suitable for all types of hair, including those with sensitive scalps.

MDHair offers unlimited dermatologist chat support, which helps you track your progress and make real-time adjustments to your regimen. The brand’s goal is to provide a first-of-its-kind, customizable hair loss solution that incorporates FDA-approved anti-hair-loss medications with botanicals and supplements.

The formula has been clinically tested and found to visibly increase hair density and reduce hair breakage, all while reducing hair loss caused by combing or washing. Shoppers swoon for its lightweight texture that can be easily massaged into the scalp and hair, as well as its blend of natural ingredients—including mung bean sprout extract and red clover, which block dihydrotestosterone, an androgen that plays a role in thinning hair. This product is also ideal for taming frizzy or textured hair and a good fit for those with protective styles like braids and weaves.