The SACHEU Lip Liner STAY-N is a long-wear, peel-off lip liner stain designed to define lips all day without the need for constant reapplication. Inspired by a viral makeup hack from founder Sarah Cheung, the product applies as a dark liquid film that is peeled off after setting to reveal a smudge-proof, semi-permanent matte stain.Long-Lasting Wear: The stain is designed to last all day, with some users reporting up to 12 hours of wear even through eating and drinking.

Nourishing Formula: Unlike traditional stains that can be drying, this formula is infused with Hyaluronic Acid for hydration and Vitamin E for antioxidant nourishment.

Precision and Versatility: It features a precision-tip applicator for sharp lines, but can also be applied all over the lips for a full-color stain.

Clean Beauty: The product is vegan, cruelty-free, fragrance-free, and formulated without parabens, sulfates, or mineral oils.

Prep Your Lips
Exfoliate and Cleanse: Start with a smooth canvas by gently exfoliating to remove dead skin.
Dry Completely: Ensure your lips are clean and dry. Avoid applying any lip balm, gloss, or other products beforehand, as residue can prevent the stain from adhering properly. 2. Apply the Liner
Trace and Fill: Use the precision-tip applicator to trace your natural lip line. You can also apply it all over for a full lip stain.
Apply a Thick Layer: Use a generous, even layer. A layer that is too thin will be difficult to peel and may result in patchy color.
Clean Up Mistakes: If you smudge outside your lip line, immediately clean it up with a cotton swab before it dries.Processing Time: Let the formula set for 10 to 20 minutes. It will go on as a shiny dark film and dry down to a matte, peelable layer.
Check Readiness: You'll know it's ready when the edges begin to curl or if you mouth "ooo" and the film crinkles.
The Peel: Start at one corner and slowly peel the film away to reveal the stain.
Final Touch: Let the fresh pigment set for 1–2 minutes before eating or drinking. Finish by applying a lip elixir or gloss for a hydrated look