Protocols
Prodermic 421 is a 4-agent detoxification system built around Black Acetic Acid (10%) for deep impurity extraction, combined with a tri-acid purification complex for comprehensive congestion clearing and skin renewal. The BAC-4D Complex pairs Black Acetic Acid's activated carbon-like drawing properties with Salicylic Acid (15%) for deep pore decongestion, Mandelic Acid (10%) for uniform antibacterial penetration, and high-dose Lactic Acid (30%) for intense hydrating exfoliation with skin barrier support.
Prodermic 421 is a 4-agent detoxification system built around Black Acetic Acid (10%) for deep impurity extraction, combined with a tri-acid purification complex for comprehensive congestion clearing and skin renewal.The BAC-4D Complex pairs Black Acetic Acid's activated carbon-like drawing properties with Salicylic Acid (15%) for deep pore decongestion, Mandelic Acid (10%) for uniform antibacterial penetration, and high-dose Lactic Acid (30%) for intense hydrating exfoliation with skin barrier support. Total active load: 65% across 4 agents.The go-to urban detox peel for pollution-exposed, congested, and dull skin. ~24 sessions per 30ml jar.
BAC-4D Complex — A black acetic acid-led detoxification system with quad-acid purification and deep lactic acid hydration.Black Acetic Acid (10%) works as a deep-drawing purification agent, extracting environmental pollutants, oxidized oil, and trapped impurities from the skin like activated carbon. Salicylic Acid (15%) penetrates into oil-rich pores to dissolve acne plugs. Mandelic Acid (10%) provides broad-spectrum antibacterial coverage with even penetration.High-dose Lactic Acid (30%) drives intense hydrating exfoliation while supporting skin barrier repair and moisture production.
Recommended sequence for prodermic 421. Frequency: As prescribed by professional.
Urban patients with pollution-related congestion, smokers, dull-congested skin, patients seeking detox positioning
A4 treatment chart — application protocol, contact time, endpoint, stop criteria, contraindications and aftercare on one printable page.
Download Treatment Chart (PDF) ↗If desired results are not achieved, it does not indicate the peel is ineffective—it may simply mean that the skin has a higher tolerance to the current formulation. In such cases, consider transitioning to a stronger peel, applying multiple coats, or increasing the application time in subsequent sessions.
