Kosas Grow Potion bottle with wand for fuller brows and lashes.
Kosas Grow Potion applicator ready for precise brow and lash use.
Close-up of Kosas Grow Potion serum tube highlighting key vegan ingredients.
Brow and lash visuals showing feathery, fuller appearance with Grow Potion.
Before and after imagery of enhanced lash length and brow definition.
Routine-use shot for daily skincare ritual with Kosas Grow Potion.
Safe-eye application close-up emphasizing prostaglandin-free, eye-friendly formula.

Kosas

Kosas Grow Potion: Fluffy Brow & Lash Boosting Serum | Eyebrow and Eyelash Enhancing Serum

High-performance beauty made for confident daily results

$61.91

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Why customers choose Oseila Beauty

Kosas Grow Potion blends a thoughtful mix of peptides and vegan keratin to support the appearance of fuller, feathery brows and longer, thicker lashes. This prostaglandin-free formula is designed to be gentle on sensitive eyes while enriching hair health and vitality. It also offers a clean, vegan, cruelty-free, and gluten-free profile that aligns with ingredient-conscious routines.

Designed as a 2-in-1 solution, Grow Potion lets you streamline your routine by applying a single serum to both brows and lashes. The result is a cohesive look—lashes that appear longer and brows that look more defined without needing multiple products.

Key benefits you may notice

  • Potential brow length and lash volume improvements over time with consistent use.
  • Reduced breakage and shedding, supporting a healthier-looking overall appearance.
  • Hydration and conditioning from hyaluronic acid and pro-vitamin B5 for a natural, well-kept sheen.
  • Clean label: vegan, cruelty-free, gluten-free, and free from mineral oil, talc, silicones, fragrance, parabens, sulfates, and phthalates.

How it works

The formula combines a trio of peptides with vegan keratin, plus pro-vitamin B5 and hyaluronic acid to nourish hair follicles, conditions the hairs, and help create a more voluminous, lifted look over time. The focus is on supporting hair health and appearance rather than providing a guaranteed transformation.

Clinically supported results

In a 12-week study, 97% of participants saw clinically measured improvement in brow length and lash volume, highlighting a measurable shift for many users with regular use.

Usage tips

  • Apply once daily to clean, dry brows and lashes using a light, hair-like sweep.
  • Wait a few minutes for absorption before applying makeup or other skincare products.

Why shoppers choose Kosas Clean

Kosas prioritizes clean ingredients and transparent labeling. Grow Potion adheres to vegan, cruelty-free, and gluten-free standards, making it a thoughtful option for those seeking a skin- and eye-friendly serum.

FAQ

Q: Is Kosas Grow Potion safe for sensitive eyes?

A: Yes. It is prostaglandin-free and formulated for sensitive eyes; it is vegan, cruelty-free, gluten-free, and fragrance-free.

Q: When might I see results?

A: In about 12 weeks, 97% saw clinically measured brow length and lash volume improvement.

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