Best Lash & Brow Serums for Thicker, Healthier Hair Fast

1. The Ordinary Multi-Peptide Lash and Brow Serum, Peptide-Powered Formula for Thicker, Fuller Looking Lashes & Brows, 0.16 Fl Oz

The Ordinary Multi-Peptide Lash and Brow Serum helps grow thicker, fuller lashes and brows. It uses powerful peptides like SYMPEPTIDE XLASH and Widelash. These boost density and health for lashes and brows.

Results show in as little as four weeks. The serum is lightweight and non-greasy, so it’s easy to use twice daily. It works best when used for 12 weeks with regular application.

Apply a thin layer on lash lines and brows morning and night. Always do a patch test before use. Avoid broken skin for safe, gentle care.

2. e.l.f. Enhancing Lash & Brow Serum, Promotes Longer-Looking Lashes & Brows, Nourishing & Conditioning Formula, Clear, 0.12 Fl Oz (3.5mL)

Longer lashes and fuller brows are just weeks away with e.l.f. Enhancing Lash & Brow Serum. This nourishing formula helps thin, brittle hairs look healthier. Apply it morning and night for the best results.

The serum is packed with antioxidants, amino acids, and vitamins to boost your natural lashes and brows. Plus, it’s 100% cruelty-free, vegan, and toxin-free, so you can feel good about using it.

3. Grande Cosmetics GrandeLASH-MD Lash Enhancing Serum – Peptide & Vitamin Infused Formula for Longer, Thicker, Fuller Looking Lashes – Ophthalmologist Tested, Cruelty-Free, 6 Week Supply (1mL)

Discover the power of Grande Cosmetics GrandeLASH-MD Lash Enhancing Serum. This serum is made with peptides and vitamins. It helps your lashes look longer, thicker, and fuller.

Use it daily for long-lasting results. It is safe and ophthalmologist tested. Plus, it is cruelty-free for guilt-free beauty.

This product comes in a 6-week supply. It is made in the USA and easy to apply.

4. LUMIFY Eye Illuminations Lash & Brow Serum, Promotes Thicker, Fuller-Looking Lashes & Brows with Biotin, Peptides & Hyaluronic Acid to Nourish, Soften & Condition, 0.12 Fl Oz (3.8 mL)

LUMIFY Eye Illuminations Lash & Brow Serum uses Peptides, Biotin, and Hyaluronic Acid to nourish and condition lashes and brows. Its gentle formula softens hair and hydrates the eye area overnight.
Clinical studies show thicker, fuller-looking lashes and brows in as little as 4 weeks. Developed with eye care experts, it’s safe for sensitive skin and the delicate eye area.
Apply nightly on clean lashes and brows. Safe for contact lenses and extensions. Hypoallergenic, fragrance-free, and free of harsh chemicals.

5. Live Fraiche Organic Castor Oil Lash Serum for Hair Growth, 100% Pure Eyebrow Eyelash Growth Serum, Cold Pressed Hexane Free (2oz Glass Bottle + FILLED Mascara Tube)

Live Fraiche Organic Castor Oil helps grow thicker, fuller lashes and brows. It’s cold-pressed and hexane-free, keeping nutrients intact. Use daily to see results in 4-6 weeks.

This serum repairs split ends and prevents hair loss. It also gives glowy, smooth skin when applied to the face or body. Non-comedogenic formula won’t clog pores.

Unquestionable quality makes it safe for sensitive skin. The adorable packaging includes a free mascara tube for easy application.

6. BodyJ4You Organic Castor Oil for Hair Growth: Natural Eyelashes Serum for Lashes and Eyebrows – Glass Bottle 1 Fl Oz

BodyJ4You Organic Castor Oil boosts lashes and brows. It uses omega-rich oil to condition hair and cut breakage. A precision brush ensures smooth, even application.

This oil deeply hydrates scalps and strengthens roots. It works as a leave-in treatment or shampoo mix. No harsh additives means gentle, effective care.

Cold-pressed, hexane-free formula suits sensitive skin. It removes makeup, moisturizes lips, and treats dry skin. Packed in UV-protective amber glass, it’s USDA Organic and cruelty-free.

7. UpNature Organic Castor Oil Lash Serum for Eyelashes and Eyebrows Growth – 100% Pure Cold Pressed Hexane-Free (2oz Glass Bottle)

UpNature Organic Castor Oil Lash Serum is a 100% pure, cold-pressed beauty essential. It supports hair growth naturally, making lashes and brows thicker. The hexane-free formula ensures safe, gentle care.

This serum comes with a mascara wand for easy use. It’s mess-free and perfect for daily care. The compact glass bottle is great for travel too.

It’s multipurpose, hydrating skin and nourishing hair. Cruelty-free and sustainably sourced, it’s safe for all skin types. Always do a patch test before use.

8. Advanced Eyelash Serum for Thicker, Longer Eyelashes and Eyebrows – Grow Luscious Lashes with Brow Enhancer (3mL)

Transform your lashes and brows with the Advanced Eyelash Serum. It helps you get longer, thicker, fuller lashes and brows naturally. No need for false lashes—just real beauty that shows.

This serum is safe and gentle for all skin types. Use it twice daily with the easy applicator for best results.

Packed with natural ingredients, it nourishes and strengthens your lashes and brows. See healthier, fuller results in just weeks.

9. Grande Cosmetics GrandeLASH-MD Lash Enhancing Serum – Peptide & Vitamin Infused Formula for Longer, Thicker, Fuller Looking Lashes – Ophthalmologist Tested, Cruelty-Free, 3 Month Supply (2mL)

GrandeLASH-MD Lash Enhancing Serum boosts lashes with peptides and vitamins. It helps lashes look longer, thicker, and fuller. The formula is ophthalmologist tested and cruelty-free.

This serum is clinically tested to nourish lashes with vitamins, peptides, and amino acids. A 3-month supply in a 2mL bottle supports healthy-looking lashes and brows.

10. Babe Original Brow Serum For Thicker Looking Eyebrows – Brow Serum with Peptides, Castor Oil, Biotin, Repairing Amino Acids | 3mL size

Babe Original Brow Serum boosts brow thickness and darkness in 6 weeks. It uses peptides, castor oil, biotin, and amino acids to enhance natural brows.

Apply nightly to clean, dry brows with short strokes. Focus on thin or sparse areas for best results.

This vegan, cruelty-free serum lasts longer with one dip per brow. Let it dry fully before skincare or makeup. Results show in weeks with daily use.