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Lash Boost
Rodan + Fields is the #1 Premium Lash Serum Brand in the US in 2024* Our famous lash conditioning serum is applied nightly to promote the appearance of longer, stronger and darker-looking lashes (or brows!) Lash Boost™
Recommended Usage
Once daily, in the PM
Size
- 5 ML / 0.17 Fl. Oz. U.S.
What It Is:
- A nightly eyelash conditioning serum infused with technology to enhance the appearance of length, volume + definition of eyelashes and eyebrows.
Why You Need It
- Lash durability can be enhanced with proper moisture and protection against breakage. Condition your eyebrows and eyelashes to achieve youthful, fuller-looking definition.
*Source: Euromonitor International Limited; Custom research conducted Dec 2025-Jan 2026, retail value RSP terms; all channels; Lash Serum including Lash Serum products sold as part of Sets and Kits.
This cosmetic product contains isopropyl cloprostenate, a synthetic prostaglandin analog.
See WARNINGS.
Key Concerns
- Thin or sparse eyelashes and brows
Key Benefits
- Maintains moisture, enhances lash durability and protects against breakage
Results
Percent of study participants who experienced an improvement in the appearance of:
- 90% fuller-looking lashes*
- 85% longer-looking lashes
- 63% darker-looking lashes*
*Based on an 8-week U.S. clinical and consumer study.
Proprietary Technology + Key Ingredients
- Lash Boost Technology: Found in our famous lash conditioning serum
How To Use
Use once daily in the PM, on upper lash line only.
- Remove makeup and cleanse face.
- Dry eyelids and lashes completely.
- Apply serum only along the upper lash lines. Dip the brush once per eye and wipe excess product off the brush before applying.
- Gently wipe off excess serum from eyelids or lashes. Do not wash your face or eye area after applying. Wait ~90 seconds for serum to dry before going to sleep or applying other products near the eye area.
Do not wash your face or eye area after applying. Wait approximately 90 seconds for serum to dry before going to sleep or applying other products around your eye area. Avoid eyelids and lashes when applying any other product to the eye area, including eye cream.
Ingredients
- R+F Lash Boost contains almond extract and may not be safe for those with nut allergies. Please consult your doctor before use.
- Water, Butylene Glycol, Hydroxyethylcellulose, Keratin, Biotin, Sodium Hyaluronate, Isopropyl Cloprostenate, Octapeptide-2, Allantoin, Panthenol, Copper Tripeptide-1, Pantethine, sh-Polypeptide-1, Cucurbita Pepo (Pumpkin) Seed Extract, Glycerin, Sea Water, Malus Domestica Fruit Cell Culture Extract, Hydrolyzed Glycosaminoglycans, Prunus Amygdalus Dulcis (Sweet Almond) Seedcake Extract, Backhousia Citriodora Leaf Oil, Dipotassium Glycyrrhizate, Rhizobian Gum, Styrene/Acrylates/Ammonium Methacrylate Copolymer, Xanthan Gum, PVP, Lecithin, PEG-12 Dimethicone, Alcohol, Chlorphenesin, Phenoxyethanol, Sorbic Acid, Sodium Hydroxide.
Made in the USA with US & Imported Materials.
WARNINGS: For external use. Keep out of reach of children. Avoid getting in eyes; if so, rinse with water. Do not use if pregnant or nursing, undergoing treatment for glaucoma or cancer, or if you have ever experienced conjunctivitis, dry eyes, eye infections, styes, irritation from other cosmetics applied in the eye area, or any eye-related disorder or illness. Some users have reported eye redness and itchiness, dry eyes, watering of the eyes, sensitivity, styes, inflammation of eyelid and eye, temporary darkening of skin around the eye area, lash loss and/or visible enhancement of hair around or outside the eye area. Stop use immediately if you experience these or other symptoms. If symptoms persist, seek medical attention. During the time Lash Boost has been on the market, R+F has received reports from some customers of other reactions, including iris discoloration, the appearance of droopy eyelids, and the exacerbation of meibomian gland dysfunction, among others. These and other reactions have been associated with other products containing prostaglandin analogs. Lash Boost has undergone 8-week clinical cosmetic testing, but no long-term testing has been conducted.

