10 Best The Ordinary Hair Growth Serum of 2025

Tested and Reviewed: Top 10 The Ordinary Hair Growth Serum deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

Venanoci ㅤ

Hair Growth Oil with Rosemary & Biotin: Natural Hair Regrowth Serum for Women & Men – Anti Hair Loss & Thinning Treatment – Promotes Thicker, Fuller, Stronger, Healthier Hair – All Hair Types

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Editor's bottom line:

“This the ordinary hair growth serum is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Clinically Inspired Hair Growth Support Infused with Biotin, Caffeine, Castor Oil, Rosemary Oil, Olive Oil, and Coconut Oil, our hair growth oil deeply nourishes the scalp, strengthens hair follicles, and promotes thicker, healthier hair regrowth.
Fast-Absorbing & Lightweight Unlike heavy, greasy oils, our lightweight formula absorbs quickly, delivering essential nutrients directly to the roots for optimal hair growth without leaving buildup or residue.
Reduces Hair Thinning & Promotes Scalp Health This nutrient-rich blend, powered by Caffeine and Rosemary Oil, revitalizes weak, thinning hair by reducing hair fall, strengthening strands, and improving scalp circulation. It supports stronger, thicker hair growth naturally, making it ideal for men and women struggling with hair loss.
Easy to Use Apply 3-5 drops daily, massage into scalp for 23 minutes, and let the nutrients work from root to tip., and watch your hair transform over time.
Safe for All Hair Types Our 100% Vegan biotin hair growth oil is sulfate-free, paraben-free, cruelty-free, and suitable for curly, straight, color-treated, or keratin-treated hair. Gentle yet effective for long-term results.

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Picked by 397 people today

9.5

The Ordinary

The Ordinary Multi-Peptide Serum for Hair Density, Peptide-Powered Formula for Thicker, Fuller Looking Hair, 2 Fl Oz

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Main Highlights

CONCENTRATED HAIR TREATMENT: A lightweight leave-in serum designed to promote thicker, fuller, and denser-looking hair by supporting the scalp.
PEPTIDE TECHNOLOGIES: Formulated with REDENSYL, Procapil, CAPIXYL, BAICAPIL, AnaGain, and High-Solubility Caffeine to visibly enhance hair vitality and promote a denser appearance.
PLANT-BASED EXTRACTS: Contains natural ingredients such as Larix Europaea Wood Extract, Pisum Sativum Extract, and Camellia Sinensis Leaf Extract to nourish the scalp.
DAILY USE: Apply a few drops to clean, dry scalp once daily, preferably at bedtime, for optimal results.
FREE FROM: Cruelty-free, gluten-free, vegan, alcohol-free, and silicone-free.

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9.5

The Ordinary

The Ordinary Multi-Peptide Serum for Hair Density, Peptide-Powered Formula for Thicker, Fuller Looking Hair, 2 Fl Oz (Pack of 2)

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Main Highlights

CONCENTRATED HAIR TREATMENT: A lightweight leave-in serum designed to promote thicker, fuller, and denser-looking hair by supporting the scalp.
PEPTIDE TECHNOLOGIES: Formulated with REDENSYL, Procapil, CAPIXYL, BAICAPIL, AnaGain, and High-Solubility Caffeine to visibly enhance hair vitality and promote a denser appearance.
PLANT-BASED EXTRACTS: Contains natural ingredients such as Larix Europaea Wood Extract, Pisum Sativum Extract, and Camellia Sinensis Leaf Extract to nourish the scalp.
DAILY USE: Apply a few drops to clean, dry scalp once daily, preferably at bedtime, for optimal results.
FREE FROM: Cruelty-free, gluten-free, vegan, alcohol-free, and silicone-free.

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9.2

The Ordinary

The Ordinary 100% Organic Cold-Pressed Moroccan Argan Oil, Nourishing and Hydrating Treatment for Skin & Hair, 1 Fl Oz

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Main Highlights

HYDRATES & COMBATS DRYNESS: 100% Organic Cold-Pressed Moroccan Argan Oil naturally hydrates skin while supporting a healthy-looking complexion.
RICH IN FATTY ACIDS & VITAMINS: Contains fatty acids and vitamins that nourish both skin and hair, improving softness and sheen.
MULTI-USE FORMULA: Can be used on skin for daily hydration or applied to hair to enhance softness and shine.
UNREFINED & ORGANIC: This organic, cold-pressed argan oil is completely unrefined, maintaining its natural scent.
APPLICATION INSTRUCTIONS: Apply a few drops to the face or work through damp hair as needed. Patch test before use and avoid broken skin.

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9.0

ZYXN

Minoxidil for Men and Women, Hair Growth Biotin Serum with Batana and Rosemary for Hair Beard Regrowth Treatments Extra Strength Hair Loss Solution, Clinically Proven to Regrow Thicker

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Main Highlights

Safe & Gentle for Daily Use Free from parabens, sulfates, and harsh chemicals, our Minoxidil solution is gentle on the scalp and suitable for long-term use. Dermatologist-tested and safe for sensitive skin
Formulated with 5% Minoxidil, this treatment effectively targets thinning hair and receding hairlines. Visible results in as little as 8 weeks with consistent use
Our 5% Minoxidil solution is clinically proven to stimulate hair follicles, promoting thicker, fuller hair growth in both men and women. The most active ingredient is 5% Minoxidil is the #1 Dermatologist Recommended ingredient for hair loss and is clinically proven and effective for hair growth
The lightweight, non-greasy formula absorbs quickly into the scalp without leaving residue. Simply apply twice daily for optimal results. Perfect for all hair types and styles
Do not let hair issues hold you back any longer. Whether your hair is dry, oily, curly, or straight, our lightweight and upgraded minoxidil spray serum is not greasy and will be absorbs quickly by scalp without little scent, is perfect for all occupations including programmers, outdoor workers, news media personnel, teachers, etc

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8.8

Marc Anthony

Marc Anthony Grow Long Scalp & Hair Serum - Anti-Breakage Formula Nourish, Strengthen & Hydrate Scalp & Hair Follicles - Natural Shine & Fuller-Looking Hair Strands from Root to Tip, 2 fl oz

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Main Highlights

Grow Long Scalp & Hair Serum: This anti-breakage Scalp & Hair Serum from Marc Anthony promotes hair length by strengthening hair fibers at the root, creating a great foundation for stronger, longer growing hair. Does not grow new hair. 2 fl oz.
Long Hair, Dont Care: Formulated to help you achieve those perfect lengths without limits, our Grow Long collection features moisturizing, anti-breakage formulas blended with Caffeine and Ginseng for stronger, longer, healthier looking hair.
Essential Ingredients: Infused with Rosemary Oil to help strengthen hair follicles and improve scalp health while a conditioning blend of Caffeine, Ginseng, and Biotin helps protect your lengths from future breakage.
How To Use: On damp or dry hair, apply to the scalp in sections, massaging as you go. Comb through and style as usual. For the best results, nourish your hair with the entire Grow Long collection. Perfect for all hair types.
Endless Haircare Innovation: The Marc Anthony team of style-makers and beauty lovers travel the world to bring you the best ingredients to create professional quality products. Our products are paraben-free, SLS-free, sulfate-free, and phthalate-free.

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8.6

Masofta

Masofta Hair Growth Serum For Density, Hair fall Control with 3% Redensyl, 5% Capixyl, 4% Anagain, 3% Procapil & 3% Baicapil, Rosemary & Biotin For Both Men & Women, 1.01 fl.oz./30ML

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Main Highlights

Advanced Formula: Formulated with ingredients like Redensyl, Anagain, Biacapil, Procapil, Capixyl to deliver comprehensive hair growth benefits.
Promotes Hair Growth: The Formulation works synergistically to control hair fall, stimulate hair follicles, and prolong the hair growth phase, resulting in thicker, fuller hair.
Strengthens Hair: Rosemary, Biotin, Rice Protein, and Keratin strengthen the hair shaft, reduce breakage, and improve overall hair health, resulting in stronger, more resilient hair.
Nourishes Scalp: The serum nourishes the scalp with essential nutrients, creating an optimal environment for healthy hair growth.
Easy to Use: Simply apply the serum to the scalp and massage gently. Use regularly for best results.

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8.3

Mielle

Mielle Organics Rosemary & Mint Hair Oil - Strengthening Biotin Oil Infused Frizzy & Damaged Hair Care - Split Ends & Dry Scalp Treatment to Support Longer, Healthier Strands, 2oz

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Main Highlights

Award-Winning Treatment - Our Rosemary Mint Scalp and Hair Oil is a nutrient-rich, intensive formula that blends biotin, mint, and essential oils including castor, tea tree, jojoba, coconut, and peppermint oil. This nourishing treatment supports a dry scalp and helps fortify strands from root to tip.
Suitable for All Hair Types & Textures - Powered by rosemary oil & biotin to help invigorate the scalp and enhance circulation, making it an effective hair treatment for dryness and flaking.
Multifunctional Formula - As a dry scalp treatment, this formula infuses moisture into the scalp while supporting long-term hair care goals. The biotin-rich blend makes it a go-to for those looking to encourage natural thickness.
Stylists Recommend - Use as scalp oil, pre wash hair oil, or for split end care. Apply to scalp or ends, massage in, leave in or rinse after 10 minutes with cap for deep nourishment.
Healthy Ingredients, Healthier Hair - At Mielle, we do more than care for hair. We champion it. Our formulas are scalp-loving, innovation-driven, and made to nourish, strengthen, and support your hair care journey with intention and performance in every drop.

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8.1

MARYRUTH'S

MARYRUTH'S Liquid Multivitamin + Hair Growth | Biotin 10000mcg | Lustriva Hair Growth Supplement | Clinically Tested in Women for Thicker Hair & Facial Wrinkle | Skin Care | Ages 18+ | 15.22 Fl Oz

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Main Highlights

HAIR GROWTH PRODUCT: Weve formulated a multivitamin for women not only to support your daily wellness but also to support your hair growth as well as nail and skin health. Lustriva, included in this formula, is clinically shown in women to help grow thicker, fuller hair in as early as 3 weeks with continued usage at 1 serving per day. This bottle provides 15 servings.
MARY RUTH MULTIVITAMIN HAIR GROWTH: Clinically tested Lustriva is also shown to improve facial wrinkles, fine lines, and smoothness in women. Also included are vitamin C, B complex vitamins, vitamin D3, chromium picolinate, and more! Chromium picolinate supports healthy body composition, healthy metabolism, and helps maintain a healthy blood sugar level already within a normal range.
BIOTIN 10000MCG: This liquid multivitamin includes all eight B vitamins, including 10,000 mcg biotin magnesium biotinate, a unique form of biotin that is 40x more soluble than D-biotin as well as methylated folate as calcium L-5-methyltetrahydrofolate! B vitamins are essential to support vital functions like skin health, energy metabolism, and more.
WOMEN HAIR GROWTH SUPPLEMENT: Enjoy this delicious liquid multivitamin in a peach mango or dragon fruit melon flavor and receive all of these nutrients plus Lustriva for thicker, fuller hair in women with just two tablespoons per day!
FOR MOST LIFESTYLES: MaryRuth's Liquid Morning Multivitamin + Hair Growth is Vegan, Dairy Free, Gluten Free, Nut Free, Sugar-Free, and Made in a GMP Facility. Clean Label Project Certified. B Corp Certified.

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8.1

Elizavecca

Elizavecca CER-100 Hair Essence Oil - Leave-In Treatment for Dry Hair Growth - 100ml K-Beauty

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Main Highlights

Your daily leave-in hair treatment oil. Hair muscle treatment system + hair care. Rich in Vitamin E. - Elizavecca CER-100's unique hair care system has been completed by adding hair root care to hair care. It is a special system that performs root care and hair care at the same time, differentiated from general hair care products.
For all hair type / Volume 100ml/3.38 fl.oz.
Helps & keeps your hair more healthier, smoother like silk, and a sleekness to your hair. Also, it helps your hair moistured, soft and glossy.
Nourishing Formula: argan kernel oil, vitamin tree fruit oil, evening primrose oil, macadamia seed oil, sweet almond oil, avocado oil, annatto seed oil, and many other good ingredients.
Sunflower oil is high in vitamin E. Argan oil contains twice as much vitamin E as olive oil. Macadamia Integrifolia Seed Oil is rich in oleic acid and palmitoleic acid, which are unsaturated fatty acids that are very similar to human sebum, so it is good for hair root and scalp care.
[How to use] Please feel free to use whenever you would want to

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Our Best Overall Choice

Best Choice

9.7

Venanoci ㅤ

Hair Growth Oil with Rosemary & Biotin: Natural Hair Regrowth Serum for Women & Men – Anti Hair Loss & Thinning Treatment – Promotes Thicker, Fuller, Stronger, Healthier Hair – All Hair Types

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Clinically Inspired Hair Growth Support Infused with Biotin, Caffeine, Castor Oil, Rosemary Oil, Olive Oil, and Coconut Oil, our hair growth oil deeply nourishes the scalp, strengthens hair follicles, and promotes thicker, healthier hair regrowth.
Fast-Absorbing & Lightweight Unlike heavy, greasy oils, our lightweight formula absorbs quickly, delivering essential nutrients directly to the roots for optimal hair growth without leaving buildup or residue.
Reduces Hair Thinning & Promotes Scalp Health This nutrient-rich blend, powered by Caffeine and Rosemary Oil, revitalizes weak, thinning hair by reducing hair fall, strengthening strands, and improving scalp circulation. It supports stronger, thicker hair growth naturally, making it ideal for men and women struggling with hair loss.
Easy to Use Apply 3-5 drops daily, massage into scalp for 23 minutes, and let the nutrients work from root to tip., and watch your hair transform over time.
Safe for All Hair Types Our 100% Vegan biotin hair growth oil is sulfate-free, paraben-free, cruelty-free, and suitable for curly, straight, color-treated, or keratin-treated hair. Gentle yet effective for long-term results.

Show Price

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