If you want longer, thicker lashes and fuller, better-defined brows, the right treatment serum can make a real difference. Here are four great options from LOOKFANTASTIC that target lash and brow density, condition fine or sparse hairs, and support a more defined, polished look over time.
1. GRANDE Cosmetics Mini Magic Gift Set
The GRANDE Cosmetics Mini Magic Gift Set is a great option if you want to try out a full lash and brow routine in travel-friendly sizes. The trio includes a lash serum, brow serum, and peptide-infused mascara — each designed to condition, strengthen, and visibly upgrade your eye features over time.
- Lash serum included: The mini GrandeLASH-MD is powered by vitamins, peptides, and amino acids to condition and strengthen lashes.
- Brow serum included: Mini GrandeBROW helps encourage thicker-looking, denser brows by targeting sparse areas.
- Mascara bonus: The mini GrandeMASCARA delivers intense colour, volume, and length with a peptide-infused formula.
2. Nanolash Eyelash Serum (3ml)
The Nanolash Eyelash Serum is a focused daily treatment designed to promote longer, stronger, and darker-looking lashes. Applied along the lash line with a thin brush, the lightweight serum targets the lashes and lash root to encourage a thicker, fuller appearance with consistent use.
- Promotes lash growth: Designed to target the lash line and encourage visibly longer, denser lashes.
- Strengthens and darkens: Supports a stronger, more defined lash appearance over time.
- Easy daily application: The precision brush makes it simple to incorporate into your nighttime skincare routine.
3. RapidBrow and RapidLash Serum Duo
The RapidBrow and RapidLash Serum Duo is a strong choice if you want to treat both lashes and brows at the same time. The pair works together to help create the appearance of thicker, fuller-looking lashes and more defined, fluffier brows — with each serum featuring its own targeted ingredient complex.
- Brow serum: RapidBrow uses a keratin and peptide blend to condition, moisturise, and strengthen sparse or thinning brows.
- Lash serum: RapidLash is enriched with peptides, biotin, and panthenol to support a longer, more voluminous lash appearance.
- Complete lash and brow care: A practical duo for anyone looking to upgrade both features in one routine.
4. The Ordinary Multi-Peptide Lash and Brow Serum (5ml)
The Ordinary Multi-Peptide Lash and Brow Serum is an excellent budget-friendly option for anyone who wants a science-backed formula that supports denser, fuller-looking lashes and brows. Powered by four peptide complexes alongside caffeine, red clover, and panthenol, this lightweight serum conditions and nourishes with consistent use twice daily.
- Multi-peptide formula: Four peptide complexes work together to support a densifying and thickening effect on lashes and brows.
- Nourishing ingredients: Caffeine, red clover, and panthenol help condition and add definition over time.
- Lightweight and fast-drying: The serum absorbs quickly without transferring onto the skin.
Whether you’re looking for a complete lash and brow kit, a targeted single serum, or a budget-friendly option to add to your daily routine, these four picks from LOOKFANTASTIC cover a range of needs and price points for visibly fuller, more defined results.