Chemical filter
Bisdisulizole disodium
Water-soluble UVA filter with a large molecule and low skin penetration. Australia allows 10%. No prominent current safety signal.
Bisdisulizole disodium is a water-soluble UVA filter (peak about 335 nm, mainly UVA2), chemically a dimer analogue of ensulizole. The large charged molecule is expected to stay on the skin surface.
Australia allows 10% in listed therapeutic sunscreens, matching the usual EU cap (as acid). It is not on the US OTC monograph. Current literature describes a good safety profile and no prominent endocrine or cancer signal.
Uncommon in mass-market Australian bottles, more often seen in European water-based or hybrid formulas.
Sources
Sunscreens with Bisdisulizole disodium
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Avène
Sunsitive Oil Control Sunscreen Fluid
Octisalate 4.5%
Ethylhexyl triazone 3%
Bisdisulizole disodium 2.6%
Bemotrizinol 2.5%
Avobenzone 2%
Bisoctrizole 2%
Chemical
SPF50+ · fluid
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Breeze Balm
Daily Fruit Serum
Octisalate 4.5%
Ethylhexyl triazone 3%
Bisdisulizole disodium 2.6%
Bemotrizinol 2.5%
Avobenzone 2%
Bisoctrizole 2%
Chemical
SPF50 · serum
- Dermal Therapy Oil-Free Face Sunscreen Octisalate 4.5% Ethylhexyl triazone 3% Bisdisulizole disodium 2.6% Bemotrizinol 2.5% Avobenzone 2% Bisoctrizole 2% Chemical SPF50+ · fluid
- Le Tan Invisible Face Serum Octisalate 4.5% Ethylhexyl triazone 3% Bisdisulizole disodium 2.6% Bemotrizinol 2.5% Avobenzone 2% Bisoctrizole 2% Chemical SPF50+ · serum
- Quick Flick Liquid to Powder Mattifying Serum & Primer - Watermelon Octisalate 4.5% Ethylhexyl triazone 3% Bisdisulizole disodium 2.6% Bemotrizinol 2.5% Avobenzone 2% Bisoctrizole 2% Chemical SPF50 · serum
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We Are Feel Good Inc
Groms Kids Sunscreen Lotion
Octisalate 4.5%
Ethylhexyl triazone 3%
Bisdisulizole disodium 2.6%
Bemotrizinol 2.5%
Avobenzone 2%
Bisoctrizole 2%
Chemical
SPF50 · lotion