Kosas Growpotion Fluffy Lash + Brow Boosting Serum

£46.00 GBP £43.24 GBP Sale
Tax included.
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Kosas GrowPotion Fluffy Lash & Brow Boosting Serum helps you manifest your best brows + lashes.

This 2-in-1 boosting serum is powered by haircare ingredients - peptides and vegan keratin accelerates the appearance of fuller, feathery brows and longer, thicker lashes.  After 12 weeks of use, 97% saw clinically measured improvement in brow length + lash volume.

Ophthalmologist-tested and safety-tested to be hypoallergenic and safe for sensitive eyes.


Colours & Details

The Kosas GrowPotion Fluffy Lash + Brow Boosting Serum contains:

  • Trio of Peptides - Supports length + thickness
  • Vegan Keratin - Nourishes + strengthens
  • Pro-Vitamin B5 - Promotes shine
  • Hyaluronic Acid - Hydrates + conditions

Certified Cruelty Free by Leaping Bunny. Suitable for Vegans. Made without gluten and essential oils.

Results - After 12 weeks of use:

  • 97%  saw clinically measured improvement in brow length + lash volume.*
  • 93% would recommend this product to a friend.**
  • 90%  agreed this product restored the appearance of misshapen or over-plucked brows.**

Results will vary. Brow results are expected sooner than lashes due to differing hair cycles.

*Based on a 12 week expert graded study with 29 subjects. **Based on a 12 week consumer study with 29 subjects.

How To Use

Apply nightly and start with a clean, dry face.

Use one dip of serum + swipe the flatter side of applicator to coat the entire brow area.

Use one dip of serum + angle the pointed tip to apply along the top lash line.

Avoid the inner corner, waterline, and bottom lashes (upper application has the lower covered).

Wait 1-2 min for serum to dry.

Don’t apply makeup immediately after or skip days…that’ll just delay your full, fluffy results.

For day use the Brow Pop , Air Brow - Tinted , Air Brow - Clear in the morning for your best brows ever.


Water (Aqua), Pullulan, Propanediol, Glycerin, Butylene Glycol, Sorbitol, Pentylene Glycol, Xanthan Gum, Sodium Hyaluronate, Panthenol, Soy Amino Acids, Wheat Amino Acids, Arginine HCl, Serine, Threonine, Trehalose, Acetyl Tetrapeptide-3, Biotinoyl Tripeptide-1, Myristoyl Pentapeptide-17, Trifolium Pratense (Clover) Flower Extract, Citric Acid, Dextran, Sodium Gluconate, Acacia Senegal Gum, Phenethyl Alcohol, Potassium Sorbate, Ethylhexylglycerin, Benzyl Alcohol, Benzoic Acid.

Product information


We offer free UK delivery on all orders over £35 & free international delivery on orders over £100 or £150 depending on your location and when the parcel weighs less than 2kgs.

All available delivery options will be listed at checkout or find more delivery options (including Next Day & Saturday delivery)


Orders to the EU will be sent taxes paid under IOSS for orders below 150 Euro.

Rest of World will automatically have UK VAT deducted at checkout and import taxes and handling fees may be charged on arrival.


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Join us for a Studio Session with our Make-Up Artists or Skincare Experts in London or book a video or phone consultation to chat through the best products for you. 


Just email us on help(at)beingcontent.com with details of what you would like help with and the products or ranges you would like to try and we will arrange a time for us to book a studio or video session for you.

In Person and Video Sessions have a booking deposit of £15, which is redeemable on online orders £50+ after the consultation.

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