IN/OUT Serum the formula is enriched with

the formula is enriched with niacinamide

and fermented rice extract — ingredients long celebrated in Japanese beauty rituals for their ability to promote clarity

it’s a tea that comforts

Hojicha represents the transformation of humble ingredients through craft

sodium hyaluronate

IN/OUT Serum the formula is enriched withLa 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.