Histomer Formula 301 Skin Clear Day Drops SPF20 – Anti-Blemish Serum for Oily Skin

Histomer Formula 301 Skin Clear Day Drops SPF20

The daytime serum in the Histomer Formula 301 Skin Clear system — designed for oily, blemish-prone, and acne-prone skin. Applied each morning, the Skin Clear Day Drops deliver targeted anti-blemish treatment, sebum control, and pore refinement while simultaneously providing SPF20 UV protection. Lightweight and fast-absorbing — suitable under makeup and compatible with the F301 Night Drops for a complete day-and-night oily skin routine.

Key actives and what they do

• SRF Complex (Lactobionic + Shikimic Acids) — The core of the Formula 301 system. Lactobionic acid is a PHA that gently exfoliates, stimulates collagen production, and has strong antioxidant properties. Shikimic acid activates skin regeneration, improves texture, and reduces pigmentation. Together they refine pores, smooth skin surface, and reduce post-blemish marks over time.
• Calmokyne (Madecasoside) — A purified Centella asiatica extract that calms inflammation, reduces redness around active blemishes, and supports barrier recovery after acid use. Prevents the irritation cycle that worsens oily and acne-prone skin.
• Glycerin — A humectant that maintains skin hydration throughout the day. Prevents the over-drying that can trigger compensatory sebum overproduction — a common issue with oily skin treatments that strip moisture.
• Arginine — An amino acid that supports skin repair and has a mild antibacterial effect. Helps accelerate the healing of active blemishes and reduces the risk of post-inflammatory scarring.
• Baobab & Stogolovnik Extracts — Nourishing botanical actives that support skin renewal and provide antioxidant protection against environmental stress.
• Vitamin E — A fat-soluble antioxidant that protects the skin from free radical damage, supports barrier function, and has a mild brightening effect on post-acne marks.
• SPF20 UV Filters — Essential when using acid-based treatments. AHAs and PHAs increase photosensitivity — daily UV protection prevents the UV-induced pigmentation that undoes the brightening work of the acids. SPF20 provides baseline daily protection for indoor and low-exposure outdoor use.

What to expect

Week 1–2: Skin feels less oily through the day. Active blemishes reduce in size and redness more quickly. Pores appear tighter. Week 3–4: Visible improvement in skin texture and reduction in post-blemish dark marks. Skin tone becomes more even. With consistent daily use: fewer new breakouts, refined pores, and a clearer, more balanced complexion. This is a treatment serum — results build progressively with consistent use.

For best results — complete the F301 Skin Clear routine

Pair with F301 Skin Clear Night Drops for overnight acid renewal and F301 Skin Clear Day Cream for daytime hydration and comfort. The three products are formulated to work as a system — using all three delivers significantly better results than any single product alone.

Who it is for

• Oily and combination skin with active blemishes or breakout-prone areas
• Post-acne dark spots and uneven skin tone
• Enlarged or congested pores
• Anyone using the F301 Night Drops who needs a compatible daytime SPF serum
• Adults 18+ — not recommended during pregnancy without medical guidance

Who it is not for

• Dry or very sensitive skin — the acid complex may be too active
• Anyone needing high-factor sun protection for extended outdoor use — SPF20 is for daily baseline protection; use a dedicated SPF50 for beach or prolonged outdoor exposure
• Wet or broken skin — avoid use on active wounds or severely irritated skin

Always apply SPF protection daily when using acid-based treatments. For external use only. Avoid contact with eyes. Keep out of reach of children.