ISNTREE TW‑Real Bifida Collagen Ampoule is a 50 ml (1.69 fl oz) serum formulated for Korean skincare routines. This ampoule contains 88% bifida ferment lysate, a probiotic ingredient known to support skin barrier function and improve skin texture. Peptides are also included to help maintain firmness and elasticity, while collagen works to provide a nourishing base for the skin.

The product is designed to aid in skin barrier repair and promote a brighter complexion. Bifida ferment is often used in skincare for its potential to strengthen the skin’s natural defenses against environmental stressors. Peptides and collagen together contribute to a firmer, more supple appearance over consistent use. This ampoule is suitable for those seeking a serum that addresses multiple concerns, including dullness, loss of firmness, and barrier weakness.

The texture is lightweight and absorbs readily into the skin, making it appropriate for layering in a multi-step routine. It can be applied after cleansing and toner, before moisturizer. The formula is gentle enough for various skin types, including sensitive or dry skin, as it focuses on hydration and nourishment without heavy oils or irritants.

Priced affordably for a 50 ml bottle, this ampoule offers a practical option for regular use. It does not rely on artificial fragrances or harsh additives, aligning with a clean beauty approach. Regular application may help maintain skin resilience and a more even tone, though individual results depend on consistent use and overall skincare habits. This product is best for those looking to incorporate a bifida and peptide serum into their daily regimen without excessive cost or complexity.