Blog

Asking "what does the number on sunblock mean?" It measures UVB protection duration and percentage. Rysun Biotech’s R&D experts explain the math and how we verify SPF accuracy in the lab.

Asking "how often should you apply sunblock?" The standard is every 2 hours. Rysun Biotech’s R&D experts explain why filters degrade and how we manufacture photostable, long-lasting SPF.

Asking "does sunblock prevent tanning?" It reduces it, but doesn't stop it 100%. Rysun Biotech’s R&D experts explain why Broad Spectrum (UVA) protection is the key to preventing pigmentation.

Asking "does sunblock expire?" Yes, degraded SPF offers zero protection. Rysun Biotech’s R&D experts explain why formulations fail and how we manufacture stable, long-lasting sun care.

Looking for a natural skincare brands manufacturer? Natural requires stability. Discover how Rysun Biotech uses Swiss-inspired R&D and bio-fermentation to create safe, high-efficacy botanical lines.

Confused by sunblock vs sunscreen? One reflects, the other absorbs. Rysun Biotech’s R&D experts explain the chemistry and how we manufacture invisible, high-performance versions of both.

Asking "does sunscreen prevent wrinkles?" The answer is yes—it stops 90% of aging. Rysun Biotech’s R&D experts explain the science of Photoaging and how we manufacture broad-spectrum anti-aging SPF.

Asking "is it okay to wear tinted sunscreen every day?" Yes, it protects against Blue Light and UV. Rysun Biotech’s R&D experts explain why daily use is essential and how we manufacture breathable, pore-safe formulas.

Asking "do dermatologists recommend tinted sunscreen?" Yes, specifically for Melasma and Blue Light. Rysun Biotech’s R&D experts explain the science of Iron Oxides and medical-grade manufacturing.

Confused about "tinted sunscreen or primer first?" SPF always touches the skin. Rysun Biotech’s R&D experts explain the science of film-formers and how to manufacture hybrid 2-in-1 formulas.

Asking "can tinted sunscreen replace foundation?" Yes, if the pigment technology is advanced. Rysun Biotech’s R&D experts explain how we manufacture buildable, high-coverage SPF.

Asking "why tinted sunscreen?" It blocks Blue Light (HEV) and eliminates white cast. Rysun Biotech’s R&D experts explain the power of Iron Oxides and hybrid skincare formulation.

Wondering "what is centella asiatica and its benefits in skincare?" It soothes, repairs, and builds collagen. Learn how Rysun Biotech’s Swiss-inspired R&D extracts high-purity Cica for superior results.

Asking "which tinted sunscreen is best for sensitive skin?" It must be mineral, fragrance-free, and iron-oxide enriched. Rysun Biotech’s R&D experts explain how we manufacture safe, color-correcting SPF.

Wondering "how to get tinted sunscreen out of clothes?" It’s stubborn because of Iron Oxides and oils. Rysun Biotech’s R&D experts explain the chemistry of removal and how we engineer transfer-resistant formulas.

Asking "Are there any popular centella sunscreens recommended by dermatologists?" Yes, for sensitive skin. Rysun Biotech’s R&D experts explain why doctors favor Cica SPF and how we manufacture them.

Asking "what ingredients in sunscreen harm coral reefs?" Oxybenzone and Octinoxate are just the start. Rysun Biotech’s R&D experts list the toxic chemicals to avoid and how to formulate safe alternatives.

Comparing "reef safe sunscreen vs regular sunscreen?" Regular chemical filters bleach coral; mineral filters protect it. Rysun Biotech’s R&D experts explain the chemistry and how we manufacture invisible eco-SPF.

Asking "Is ‘reef safe’ sunscreen a gimmick?" Often yes, because the term is unregulated. Learn how Rysun Biotech’s R&D adheres to strict Hawaii standards to manufacture genuinely eco-friendly SPF.

Asking "does no oxybenzone mean reef safe?" The answer is no. Octinoxate, parabens, and nano-particles also harm coral. Rysun Biotech’s R&D experts explain true environmental safety standards.