IN/OUT Serum and deep sea water —

and deep sea water — delivering multi-level hydration and supporting skin firmness

each product reflects the simplicity and balance of Japanese food culture

✔ Made in Japan✔ Traditional rice crackers✔ Flavoured with red shiso and ume plum✔ Perfect with Genmaicha and Hojicha✔ Tea pairing favourite

this serum combines aged sake lees

From Kagoshima’s volcanic highlands comes our JAS Organic Sencha — a tea of exceptional purity and poise

IN/OUT Serum and deep sea water —La Sincia IN OUT Serum is the third step of the IN OUT ritual a targeted treatment phase that delivers intense hydration and visible renewal. Formulated with traditional Japanese fermented ingredients sourced from a historic Edo period sake brewery, this serum combines aged sake lees, fermented soy milk, and fermented rice extract ingredients long celebrated in Japanese beauty rituals for their ability to promote clarity, softness, and elasticity.