If you’re seeking effective solutions to boost hair growth, scalp serums can play an essential role in revitalizing your hair and promoting thicker strands.
With numerous options available, finding ones that truly deliver results can be challenging. This guide explores some of the top picks for scalp serums that might enhance your hair.
These serums target concerns like hair loss, thinning hair, and improving scalp health, utilizing various ingredients such as essential vitamins, amino acids, peptides, and plant-based oils.
Consistent use is often key for noticeable results, which can vary depending on the product and individual factors.
Here are some of the top scalp serums for hair growth, based on the provided sources:
1. MOERIE Ultimate Hair Growth Serum for Natural Hair Regrowth

This serum targets hair loss with a unique blend of essential vitamins and amino acids, promoting natural regrowth and thickening.
It is applied daily to a cleansed scalp and massaged in, with no rinsing needed. 92% of its ingredients are sourced from nature, making it suitable for all hair types. It is also 100% vegan and cruelty-free.
Best For: Women experiencing hair loss who are looking for a natural regrowth solution.
Pros:
- Contains essential vitamins and amino acids that promote natural hair growth.
- 92% of ingredients are of natural origin, making it suitable for all hair types.
- 100% vegan and cruelty-free, produced in eco-friendly packaging.
Cons:
- Some users may experience initial shedding or product buildup.
- Mixed reviews regarding customer service and product quality.
- Results can vary, with some users not seeing significant improvements.
2. Nutrafol Men’s Hair Serum (30mL)

This lightweight, non-greasy serum is clinically tested to support visibly thicker hair and improved scalp coverage. Many users report noticeable results within three months.
It can be combined with oral supplements for enhanced effects. Patience and consistent use are key for best outcomes.
Best For: Men experiencing thinning hair who are looking for a clinically tested serum to support hair growth and scalp coverage.
Pros:
- Lightweight and non-greasy formula suitable for daily use.
- Many users report noticeable results in hair thickness and confidence within three months.
- Can be effectively combined with oral supplements and shampoos for enhanced results.
Cons:
- Some users experienced no results and reported gastrointestinal issues with the pills.
- Mixed reviews regarding the price versus the effectiveness of the product.
- Patience is required, as results may vary and take time to manifest.
3. Hair Growth Serum for Hair Loss Treatment (50 ML)

This serum is enriched with Rosemary Oil, Batana Oil, Biotin, Castor Oil, and Rice Water to stimulate hair follicles and promote faster growth. It is formulated with natural ingredients, making it gentle on the scalp and free from harsh chemicals.
It strengthens hair from root to tip, reducing breakage and improving density. It also repairs damaged strands, restoring softness and shine. It features an easy-to-use spray applicator for effortless daily use.
Best For: Individuals experiencing hair thinning and loss who want to promote hair growth and improve hair health.
Pros:
- Natural Ingredients: Formulated with plant-based ingredients, making it gentle on the scalp and free from harsh chemicals.
- Strengthening Properties: Strengthens hair from root to tip, reducing breakage and improving overall hair density.
- Easy Application: Features a spray applicator for precise and even distribution, allowing for effortless daily use.
Cons:
- Time for Results: Users may need to wait several weeks to see noticeable results in hair growth.
- Individual Variation: Effectiveness may vary based on individual hair types and conditions.
- Scent: Some users may find the natural scent of the oils to be strong or not to their liking.
4. Organic Castor Oil with Rosemary Oil for Hair Growth (8 Fl Oz)

This 100% pure, cold-pressed formula is free from harsh chemicals, making it suitable for all hair types. Packed with essential fatty acids and vitamin E, it nourishes and strengthens hair while promoting growth by stimulating follicles.
Users report its soothing properties, reducing irritation and dandruff. It has a convenient pump design for mess-free application. It can be mixed with carrier oils or lotions for enhanced results.
Best For: Individuals seeking a natural solution for hair growth and scalp health improvement.
Pros:
- 100% natural and chemical-free formulation suitable for all hair types.
- Rich in essential fatty acids and vitamin E, promoting nourishment and strength.
- Convenient pump design allows for mess-free application.
Cons:
- May take time to see noticeable results in hair growth.
- Some users might find the texture thick and challenging to apply without mixing.
- Limited availability in local stores may require online purchasing.
5. Mielle Organics Rosemary Mint Scalp & Hair Strengthening Oil (2 Ounce)

This nutrient-rich, biotin-infused oil features over 30 essential oils, including rosemary and mint, that promote growth and soothe the scalp. Its lightweight formula nourishes hair, smooths split ends, and combats dandruff without leaving a greasy residue.
Users report noticeable improvements in hair thickness and scalp health after consistent use, especially when applied at night. It has a revitalizing scent.
Best For: Individuals seeking to promote hair growth and improve scalp health across various hair types.
Pros:
- Nutrient-rich formula: Contains over 30 essential oils and nutrients, including biotin, rosemary, and mint, promoting healthy hair growth and scalp nourishment.
- Lightweight texture: Does not leave hair greasy, making it suitable for regular application and ideal for various hair textures, including fine hair.
- Visible results: Users report noticeable improvements in hair thickness and scalp health after consistent use, especially with nighttime application.
Cons:
- Strong scent: The invigorating aroma may be too strong for some users, potentially causing discomfort during application.
- Requires consistency: Optimal results depend on regular usage, which may be challenging for some individuals to maintain.
- Potential greasiness for fine hair: While lightweight, caution is advised for those with fine hair to avoid any potential greasiness.
6. The Ordinary Multi-Peptide Serum for Hair Density

This peptide-powered serum is water-based and won’t leave your hair feeling oily or greasy. Users report visible improvements in density and growth after consistent nightly application.
Some users notice changes in as little as 20 days. Many users prefer it over heavier alternatives due to its quick absorption and lack of strong scent.
Best For: Those looking for a lightweight serum to enhance hair thickness and density without leaving a greasy residue.
Pros:
- Lightweight, water-based formula that absorbs quickly.
- Users report visible improvements in hair density and growth with consistent use.
- Preferred over heavier alternatives due to its lack of strong scent and oily feel.
Cons:
- Some users may not notice immediate results and require patience.
- Individuals sensitive to caffeine may experience sleep disturbances if used at night.
- Smaller bottle size may lead to frequent repurchases for those using it regularly.
7. Divi Scalp Serum for Thinning Hair (30ml)

This serum is clinically tested and nourishes your scalp with amino acids, caffeine, peptides, and rosemary oil, promoting fuller-looking hair.
Users have reported a 90% improvement in hair fullness after 12 weeks. It’s easy to use with daily application to wet or dry hair, targeting problem areas without rinsing. It is suitable for all hair types and safe for use with hair extensions.
Best For: Individuals experiencing hair thinning or shedding, particularly those with a dry scalp or who frequently wear tight hairstyles.
Pros:
- Clinically tested formula that promotes fuller-looking hair and improves hair density.
- Easy to use with daily application, suitable for both wet and dry hair.
- Effective for all hair types and safe for use with hair extensions.
Cons:
- Some users may find the 30ml size small.
- Mixed feelings about the perceived value relative to the bottle size.
- Results may take time, requiring consistent use for noticeable improvements.
8. Dove Scalp + Hair Therapy Density Boost Serum

This dermatologist-developed formula is infused with Vitamin B3, Vitamin E, zinc, and peptides. It promises noticeable results in just 30 days, restoring hair fullness and strength while caring for the scalp.
Users have reported significant improvements in scalp health, including reduced redness and itchiness.
It is applied on damp hair, is lightweight and non-greasy, leaves hair feeling clean, and has a pleasant scent and cooling sensation. It aligns with Dove’s cruelty-free values.
Best For: Those looking to enhance hair fullness and strength while caring for their scalp with a lightweight, dermatologist-developed serum.
Pros:
- Restores hair fullness, strength, and thickness in just 30 days, with 89% of women reporting positive results.
- Infused with beneficial ingredients like Vitamin B3, Vitamin E, zinc, and peptides that improve scalp health.
- Lightweight and non-greasy formula that leaves hair feeling clean and fresh without weighing it down.
Cons:
- Some users experience issues with the dropper not staying screwed in, which may lead to leaks.
- Effectiveness may vary based on individual hair types and conditions.
- Requires application on damp hair for optimal results, which may not be convenient for all users.
9. Botanic Hearth 100% Pure Rosemary Oil for Hair Growth (6.7 fl oz)

This 100% pure Rosemary Oil is an excellent choice for those seeking a natural solution to thinning hair and scalp issues. Infused with biotin, jojoba, and castor oil, it strengthens hair follicles and reduces breakage.
Users report impressive results, with hair loss decreasing significantly. To maximize benefits, it is applied using a comb applicator, massaged into the scalp, and left on for 2-3 hours before shampooing.
Best For: Those experiencing hair thinning or scalp issues who seek a natural solution to promote hair growth and health.
Pros:
- Promotes hair growth and thickness by nourishing the scalp and strengthening hair follicles.
- Ethically sourced and free from harsh chemicals, making it suitable for sensitive scalps.
- Users report significant reduction in hair loss, with many experiencing improved hair texture and health.
Cons:
- Some users experienced shipping issues, including leaking during transit.
- Effectiveness may lessen with hair coloring, limiting benefits for color-treated hair.
- Thick oil requires thorough washing (often two shampoos) for complete removal.
10. Marc Anthony Grow Long Scalp & Hair Serum (2 fl oz)

This anti-breakage formula strengthens hair fibers right at the root. It is infused with rosemary oil, caffeine, ginseng, and biotin to improve scalp health while protecting against breakage.
It is lightweight, leaving hair shiny and smooth without greasiness. It is applied on damp or dry hair, massaged into the scalp, and combed through. For best results, consider using it with the entire Grow Long collection.
Best For: Individuals seeking to reduce hair breakage and enhance the overall health and appearance of their hair.
Pros:
- Lightweight formula that does not weigh hair down or feel greasy.
- Infused with beneficial ingredients like rosemary oil, caffeine, ginseng, and biotin for improved scalp and hair health.
- Provides immediate results with increased shine, softness, and smoothness.
Cons:
- Does not promote the growth of new hair strands.
- Optimal results may require the use of the entire Grow Long collection.
- Some users may not experience long-term improvements in hair texture.