tarte Opening Act Lash Primer — White Tint Conditioning Lash Base, Travel Size, Vegan & Ophthalmologist-Tested for Longer, Fuller

tarte Opening Act Lash Primer is a white-tinted conditioning lash base that primes, lengthens, and helps lashes look fuller before mascara.

This lightweight primer acts like a treatment-plus-base: its white-tinted formula coats lashes to enhance length, curl, and volume when you follow with mascara. Formulated vegan and cruelty-free, the primer uses a 360° magniLASH brush to deliver even pigment and product to each lash while key ingredients such as vitamin C, castor oil, cellulose, carnauba wax, and olive esters support a conditioned appearance.

How does this primer change my mascara results?

Use Opening Act under your regular mascara to boost visible length, volume, and curl without weighing lashes down. The primer provides a thin white coating that builds on mascara pigments and fibers, creating a fuller look and helping lashes appear more dramatic with less product.

• 360° magniLASH brush ensures even application to root-to-tip
• White-tinted base intensifies mascara color and lift
• Carnauba wax and cellulose add texture for volume without clumps
• Formulation designed to work under most mascaras

What key ingredients are included and why do they matter?

The formula blends plant-derived and skin-invigorating components to condition the lashes while priming. Ingredients like cellulose and carnauba wax provide body and smooth application, olive esters help condition, and vitamin C supports a healthy-looking lash surface. Castor oil adds moisture-like properties that contribute to a supple finish.

• Cellulose: plant-derived thickening agent for added body
• Carnauba wax: smooth application with lengthening and volumizing effect
• Olive esters: conditioning agents to soften lashes
• Vitamin C and castor oil: nourish and promote a polished appearance

Is this safe for sensitive eyes and contact lens wearers?

Opening Act is ophthalmologist tested, dermatologist tested, and labeled safe for contact lens wearers in clinical testing. The formula excludes parabens, mineral oil, phthalates, triclosan, sodium lauryl sulfate, and gluten, aiming to reduce potential irritants while delivering primer performance.

• Clinically tested and suitable for contact lens wearers
• Free from parabens, mineral oil, phthalates, triclosan, SLS, and gluten
• Vegan and cruelty-free formulation
• Ophthalmologist and dermatologist tested for compatibility

How do I apply the primer for best results?

Wipe excess product from the wand and sweep the 360° brush from lash root to tip, coating each lash evenly. Allow the white primer to set briefly, then follow with your favorite mascara to build length, curl, and volume. For more lift, apply a second thin layer before mascara.

• Start with clean, dry lashes and open the wand fully for coverage
• Sweep the brush in an upward motion for lift and separation
• Let the primer dry slightly before layering mascara
• Use daily as a base or occasional lash-conditioning step

Who is this for: People seeking a cruelty-free, vegan lash primer that doubles as a conditioning base and helps lashes look longer, fuller, and more lifted under mascara. It’s suited for those with sensitive eyes or contact lens wearers who want even application from a 360° brush and prefer formulas without common irritants. Ideal for anyone who wants an easy pre-mascara step to amplify curl, volume, and overall lash definition.

Ingredients

Please refer to product packaging for the most up to date list of ingredients and country of origin. Water/Aqua/Eau, ethylene/VA copolymer, copernicia cerifera (carnauba) wax/cera carnauba/cire de carnauba, hydrogenated olive oil stearyl esters, glyceryl stearate, nylon-12, cetearyl stearate, stearic acid, palmitic acid, triethanolamine, silica, hydrated silica, phenoxyethanol, hydroxyethylcellulose, hydrogenated castor oil, synthetic wax, cellulose, dimethicone, babassu oil glycereth-8 esters, cetearyl alcohol, ascorbyl palmitate, ethylhexylglycerin, disodium phosphate, polysorbate 60, tocopherol, sodium phosphate.