Tatcha The Serum Stick | Smooth Dry Fine Lines Instantly, Face & Eye Brightener Stick 8 G | 0.28 oz

Solid serum stick infused with squalane, Japanese lemon balm and hydrating oils for research on smoothing dry fine lines and brightening skin. The portable balm glides onto skin, delivering targeted moisture and antioxidants to face and eye area models, instantly softening the appearance of lines and providing a dewy glow. Ideal for studying convenient serum formats and their effect on moisture retention and barrier repair; research use only.