Belguard -Model PBSA -Phenylbenzimidazole Sulfonic Acid
Phenylbenzimidazole sulfonic acid is often used as a common active ingredient in all sunscreen products. Back in the year 1999, the FDA of the USA made it mandatory for all manufacturers of cosmetic products to use the name Phenylbenzimidazole sulfonic acid in their product labels in case they have used it as an active ingredient. It is also known as Ensulizole.
Product Name: Phenylbenzimidazole Sulfonic acid
CAS No.: 27503-81-7
EINECS No.: 248-502-0
Chemical Name: 2-Phenyl-3H –Benzimidazole -5-Sulfonic acid
Chemical Formula: C 13 H 10 N 2 O 3 S
Molecular Weight: 274.3
Synonyms: 2-Phenyl benzimidazole-5-sulphonic acid, Ensulizole (USA), Eusolex 232 (Merck), Neo Heliopan Hydro (Symrise), PBSA
It is very effective when it comes to protecting the skin from the harmful effects of the sun’s UVB rays. In case of UVA protection, it should be kept in mind that the compound is not that efficient as a shield.
To make sure that Phenylbenzimidazole sulfonic acid has the capability to protect an individual from both the UVA and UVB rays of the sun, it needs to be paired with titanium dioxide, avobenzone or a similar compound like zinc oxide.
If one takes a closer look outside of the US, manufacturers often pair Phenylbenzimidazole sulfonic acid with compounds like Mexoryl or Tinosorb for better results. Ensulizole is soluble in water which means that cosmetic products that have the compound as an active ingredient feels light to the skin post application. When used in the manufacturing of lotions, sunscreens and moisturizers, it is often seen that patrons prefer products containing Phenylbenzimidazole sulfonic acid due to its non-greasy and light finish.
It should be kept in mind that there aren’t many studies out there in the R&D world that can shed some light on the overall efficacy of Phenylbenzimidazole sulfonic acid as an active ingredient for cosmetics. Selective, independent studies carried out by researchers have revealed time and again that when exposed to direct sunlight, Phenylbenzimidazole sulfonic acid don’t degrade readily. In short, it is one of the best protective compounds for human skin against UV radiation.
PRODUCT DESCRIPTION
Belguard PBSA (Phenylbenzimidazole sulfonic acid) is a UV-B filter that absorbs UV light between 280-340 nm to protect skin from sunburn and cancer. Due to its water solubility, it fits perfectly for sun care without oil or exceeding the contents of oil. It is compatible with almost all cosmetic ingredients. It is always used in combination with other UV filters like Avobenzone, Titanium oxide, Zinc Oxide etc.
Appearance: White to Pale beige Powder
Odour: Almost odourless
Assay w/w: 98% - 102 %
Loss on drying w/w: < 2%
Specific Absorbance (1%,1cm,@302±2nm): 920 – 990
Total Aerobic count: Max 100 CFU /gram
Total Yeast & Mould count: Max 10 CFU / gram
CONCENTRATION
In USA up to 4%, In Europe & Canada up to 8%, In Japan up to 3% and in China and India up to 4%.
STORAGE
Store in tightly closed containers in cool & dry conditions. Keep away from direct sunlight.
EXPIRY DATE
Two years from the date of manufacturing.
PACKAGING
25 Kg in Cartons.