BAD SKIN Long and Tinting Lash Serum – two-phase lash serum with a subtle black tint
BAD SKIN Long and Tinting Lash Serum is a two-part lash serum designed to combine everyday lash care with subtle visual enhancement. Its concept is simple: the clear formula is intended to help maintain the condition of the lashes, while the black formula creates a naturally more defined, fuller-looking appearance without the effect of traditional mascara. It is designed for those who value more than just decorative products and prefer a tidier, less cumbersome lash routine.
Two formulas in one bottle: care and a subtle tint
What sets this serum apart is not only its two applicators, but also the distinct purpose of each formula. The clear formula combines magnolia bark, purslane, centella and heartleaf houttuynia extracts with milk and hydrolyzed soy proteins. The black formula is based on a film-forming base and carbon powder, which envelop the lashes in a light dark veil. One of the most distinctive features of the formula is the 12 different peptides in the black serum, complementing its lash-care benefits.
- Clear care phase: botanical extracts, tocopherol and proteins help promote a softer, more flexible feel and support a well-groomed appearance.
- 12-peptide complex: the peptides and copper tripeptide in the black formula complement the lash-conditioning formula, designed to care for lashes that appear more fragile.
- Subtle tinting effect: carbon powder provides the black tint, while pullulan and PVP help the formula coat the lashes evenly and enhance their appearance.
Both water-based textures are lightweight: the clear serum does not leave a noticeable layer, while the black formula dries to create a neat, understated accent. It will especially appeal to those who prefer natural-looking lash enhancement and a care product that offers a practical middle ground between mascara and serum.
Usage
In the evening, on clean, dry skin apply a thin layer of BAD SKIN Long and Tinting Lash Serum with the applicator along the roots of the upper eyelashes (like an eyeliner), avoiding contact with the eyes; allow to dry completely before using other products or going to bed, and in the morning, if needed, wash as usual. Use 1 time per day; if eyes are sensitive, start using every other evening and increase frequency as tolerated. If product gets into the eyes, rinse thoroughly with water, and discontinue use if irritation occurs.
Ingredients
Peptides, Panthenol, Biotin, Black Tint Agents, Botanical Extracts
The manufacturer is responsible for the product’s ingredients. Due to possible changes, we always recommend checking the ingredient list directly on the packaging.
The core of the brand’s philosophy is minimalism, but not a purely formal one. Here, minimalism means thoughtful formula architecture: essential active ingredients, a clear function, and a logical place in the routine. For the user, this helps focus not on promises, but on mechanisms: what the product does, what result to expect, and at which step it works most effectively. BAD SKIN emphasizes transparency—clearly communicated formulation choices, comfortable textures, and consistently monitored results, rather than an instant “wow” effect that is often short-lived and hard to measure.
The standout line is the Collagen Bomb moisturizing range. It is created for times when skin loses its sense of plumpness and elasticity, becomes rougher, and the overall look starts to resemble signs of fatigue: less “vitality,” more discomfort. The goal of the line is intensive hydration and surface smoothing, visually delivering a “plumped” effect. In practice, this means greater comfort, a more even texture, and a healthier-looking glow—not as a cosmetic illusion, but as the result of a stabilized moisture balance.
For those looking for a rational K-beauty routine, BAD SKIN stands out for its simplicity that does not downplay the skin’s biological needs. The products are designed to be easy to integrate into morning and evening care, and their effectiveness to be assessed by clear criteria: a stronger feeling of hydration, a smoother texture, better resilience of the skin barrier to irritants, and less tightness. 
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