Elizavecca Cf-Nest 97% B-Jo Serum
Elizavecca Cf-Nest 97% B-Jo Serum is a popular K-beauty staple designed to provide intense hydration and skin-revitalizing benefits. Formulated with an impressive 97% Swiftlet Nest Extract, this serum is rich in proteins and amino acids that help firm, smooth, and brighten the complexion. It also features Niacinamide, a powerhouse ingredient known for improving skin texture, minimizing the appearance of pores, and evening out skin tone. The texture is lightweight and slightly viscous, absorbing quickly into the skin without leaving a heavy or greasy residue, making it an ideal choice for layering under moisturizers or makeup. While it offers deep moisture and a healthy glow, it is important to note the inclusion of Algin farther down the ingredient list, which serves as a thickening agent. For most users, this serum provides a bouncy, radiant finish and improved elasticity. However, those with highly reactive or acne-prone skin should monitor how their skin responds to the algae-derived components present in the formula to ensure a clear complexion.
Our Analysis
Our analysis of Elizavecca Cf-Nest 97% B-Jo Serum reveals a relatively skin-friendly profile with one notable exception: Algin. Rated 4/5 on the comedogenic scale, Algin is a polysaccharide derived from brown algae used as a thickener. While it contributes to the serum's silky feel, it can form a film on the skin that potentially traps sebum, leading to congestion in some users. Because it appears lower in the formula and the base is dominated by nest extract, the overall risk remains LOW, but those prone to surface clogs should proceed with a degree of caution.
Skin Type Recommendations
This serum is excellent for dry, dehydrated, and mature skin types seeking a boost in elasticity and brightness. While Niacinamide benefits oily skin, the presence of Algin means those with severe cystic acne or extremely congestion-prone skin should patch test first to ensure the formula doesn't trigger new breakouts.
Flagged Ingredients
Polysaccharide thickener derived from brown algae; creates clogging films.
Want Deeper Analysis?
Run our MACR (Multi-Axis Comedogenic Risk) analysis to get a comprehensive 5-axis risk assessment. This AI-powered analysis evaluates ingredients for Plugging Risk, Barrier Damage, Fungal Acne Risk, Oxidation Risk, and real-world User Reports — giving you personalized scores for your skin type.
