fLASH Eyelash Serum conditions the lash follicles to support and strengthen the lashes.

fLASH is applied once daily to the lash line on your upper eyelid, similar to a liquid eyeliner. It goes on easy and dries in just a minute or two, making it super convenient to add into your daily makeup routine.

Created by a medical doctor, fLASH* was designed to be the most safe, affordable and effective eyelash conditioning serum available. fLASH has also been tested by an ophthalmologist and is safe for those with sensitive skin and contact-lens wearers. 

*fLASH has not been tested in all situations. Therefore, pregnant and breastfeeding, as well as individuals undergoing chemotherapy, should not use this product.

Yes! fLASH Eyelash Serum is completely safe with lash extensions and all types of glue. In fact, it is recommended to use fLASH with lash extensions to keep your natural lashes strong and healthy. 

Each tube of fLASH Eyelash Serum contains a full 3-month supply. Each tube of fLASH Eyelash Serum Mini contains a full 6-week supply.

fLASH Eyelash Serum (2mL) comes with a full 90-day Happiness Guarantee or Your Money Back which means the guarantee lasts as long as the product does! Love your lashes or your money back.

The 90-Day Happiness Guarantee applies only to the fLASH Eyelash Serum (2mL) as you have 90 days to see your best and full results, or your money back. The fLASH Eyelash Serum Mini (6-Week Starter Supply) and fLASH Happy Mascara are exempt from this guarantee.

Water/Aqua, Hydroxyethylcellulose, Glycerin, Panthenol, Hydrolyzed Soy Protein, Butylene Glycol, Carbomer Polysorbate20, Palmitoyl Oligopeptide, Palmitoyl Tetrapeptide-7, Sodium Hyaluronate, Soluble Collagen, Dehydrolatanoprost, Hydrolyzed Wheat Protein PG-Propyl Silanetriol, Disodium EDTA, Phenoxyethanol, Ethylhexylglycerin.

Shipping & Returns

We offer FREE worldwide shipping* ! After you place your order, we’ll email you an order confirmation. Once the product ships, UPS will email you your tracking number. Expect your tube of fLASH to arrive in 5-7 business days for US orders and 7-14 days for international.

Disclaimer: We are shipping from the U.S. Some orders may take up to four weeks depending on your location, and we cannot be responsible for fees or customs charges levied by your country.

Returns are easy with our 90 Day Happiness Guarantee*!

If you would like to return your fLASH Eyelash Serum purchased on www.flashcosmetics.com for any reason within 90 days of delivery date, simply submit a request to do so through our Contact Us form. If you would like to return any other fLASH Eyelash Serum products, you may do so within 30 days of delivery date. You may also request to do so through our Contact Us form. 

Please provide the date purchased and order number. If you have purchased from an authorized retailer, please submit your return directly through them.

To complete your return, we require a receipt or proof of purchase.

Any item that is returned more than 90 days after delivery may be eligible for a partial refund or no refund.

*90 Day Happiness Guarantee applies to fLASH Eyelash Serum (2mL) only.

Still have questions? Reach out to us HERE!