Water-based sunscreen projects often run into the same tension: the formula needs UVB strength, but the finished gel, spray, or light emulsion still has to feel clean. Phenylbenzimidazole Sulfonic Acid, often shortened to PBSA, gives formulators a practical water-phase route when SPF support and photostability both matter.
Why PBSA Fits Lightweight Sunscreen Formats
PBSA is useful when a sunscreen concept depends on a clean, low-residue sensory profile. BFP-SP PBSA is supplied as a white to pale yellow powder with the INCI name Phenylbenzimidazole Sulfonic Acid, so R&D, purchasing, and regulatory teams can align around a clear ingredient identity.
The product’s practical appeal starts with its role as a high-efficiency UVB filter. Because UVB protection is closely tied to SPF contribution, a UVB-focused ingredient can help brands develop daily-wear gels, clear sprays, and light lotions without leaning only on heavier oil-phase filter packages.
Water-based products need UV filters that support the phase design instead of fighting it. BFP-SP PBSA is positioned for water-based sunscreen products, which makes it relevant when a formulation team wants lighter textures, easier active placement, or a clearer phase strategy.
The Technical Identity Behind BFP-SP PBSA
Product identity matters because ingredient substitution can change regulatory review, formulation behavior, and procurement specifications. BFP-SP PBSA uses CAS number 27503-81-7 and the molecular formula C13H10N2O3S, with a molecular weight of 274.295.
| Selection point | BFP-SP PBSA detail | Why it matters in sunscreen development |
| Ingredient identity | INCI: Phenylbenzimidazole Sulfonic Acid | Supports ingredient-list accuracy and technical purchasing alignment |
| Physical form | Pulver branco a amarelo pálido | Gives buyers a basic appearance check for incoming material |
| Hyd (12516;[UNK][UNK])rophilic Titanium Dioxide Slurry/BFP-TDW | High-efficiency UVB filter | Helps support SPF-focused sunscreen concepts |
| Formula direction | Used for water-based sunscreen products | Fits gel, clear spray, and light emulsion development |
| Paquete | 25 kg/drum | Matches bulk raw-material handling and factory planning |
UVB efficiency and SPF contribution
UVB efficiency is the reason PBSA appears in SPF-driven sunscreen discussions. BFP-SP PBSA contributes to high SPF as a high-efficiency UVB filter, so it belongs in briefs where the main gap is UVB strength rather than broad-spectrum coverage by itself.
A single UV filter rarely solves the whole sunscreen architecture. Before treating PBSA as the right UVB sunscreen filter for a commercial formula, the team still has to balance UVA coverage, phase compatibility, sensory target, market limits, and finished-product testing.
Where PBSA Works Best in Formulation Planning
PBSA fits best when the product concept starts with a water-phase design instead of a rich oil-dominant base. Shanghai BFP connects this ingredient with gel and clear spray sunscreen products, two formats where heaviness, whitening, and residue can quickly weaken user acceptance.
A practical planning question is whether the desired product needs a dedicated water-based PBSA sunscreen filter. If the formula already has strong oil-phase UVB coverage, PBSA may be less central; if the concept needs a light water-based profile, its value becomes easier to see.
Useful development scenarios
The strongest PBSA use cases are specific formula situations rather than generic sunscreen claims. In each case, a water-based UVB filter helps the product brief stay coherent from the first lab batch to the final testing plan.
- Clear sunscreen sprays that need SPF support without a visibly heavy finish.
- Gel sunscreens where the water phase carries more of the sensory experience.
- Light daily emulsions that need UVB support beside other UVA or broad-spectrum filters.
- Skin care products where the brand wants a cleaner feel than a purely oil-phase UV-filter package may allow.
These use cases also explain why PBSA is better compared by formula role than by ingredient name alone. The more useful question is how the UVB filter behaves inside the whole sunscreen system that will be tested, claimed, and sold.
Regulatory Limits Shape the Real Formula Window
Market planning should come before final percentage targets. BFP-SP PBSA is listed with maximum concentration references of 4% for the United States and Australia, 8% for the European Union, and 3% for Japan, so a global SKU needs more than one regulatory assumption.
These concentration windows make early regulatory screening important for distributors and private-label teams. A formula designed around the EU limit may still need adjustment before launch in Japan or the United States, and the final claim set depends on finished-product testing.
PBSA’s role belongs in the formula brief with the target market, expected active level, supporting UVA filters, and testing plan. That shared note gives purchasing, R&D, and regulatory teams a cleaner basis for deciding whether the ingredient fits the commercial launch route.
Supplier Evidence Buyers Should Confirm
A sourcing decision should connect the ingredient’s technical role with practical supply evidence. Shanghai BFP supplies organic UV filters for sunscreen alongside mineral UV filters, dispersive liquids, whitening powders, and related anti-aging raw materials for sun care and cosmetics work.
For PBSA, buyers should confirm the specification sheet, INCI name, CAS number, appearance, package size, sample availability, and target market before a paid order. These checks are basic, but they stop a project from advancing with a material that does not match the regulatory or sensory brief.
Manufacturing reliability also matters for repeat launches. Shanghai BFP New Material works with production sites in Tianjin, Shandong, Jiangsu, and Hubei, supported by chemical-park facilities, clean workshops, laboratory equipment, and R&D and QC capability.
The same supplier context is useful when a buyer wants one purchasing route for several sunscreen raw materials. A sunscreen raw material supplier with organic UV filters, mineral UV filters, dispersive liquids, and sample support can help teams compare compatible ingredients without isolating PBSA from the rest of the formula.
Practical Takeaway for PBSA Selection
PBSA is most convincing when the product brief needs a photostable, high-efficiency UVB filter for a water-based sunscreen format. It is not a complete broad-spectrum system on its own; it works best with a clear UVA strategy, target-market concentration review, and finished-product SPF testing.
For buyers comparing PBSA with other sunscreen actives, the next step is to match the formula format, market, and documentation requirements before requesting a sample or specification review. To discuss BFP-SP PBSA for gel, spray, or light emulsion projects, contact Shanghai BFP with the target market and formula direction.
FAQ
Is PBSA the same as Phenylbenzimidazole Sulfonic Acid?
PBSA is the common shorthand for Phenylbenzimidazole Sulfonic Acid. BFP-SP PBSA uses Phenylbenzimidazole Sulfonic Acid as its INCI name and CAS number 27503-81-7.
What type of UV protection does PBSA provide?
PBSA is mainly a UVB filter. It is useful for SPF-focused sunscreen design, while broad-spectrum formulas still need suitable UVA support and final performance testing.
Why is PBSA used in water-based sunscreen products?
PBSA is relevant to water-based sunscreen formats because it can support UVB protection in gels, clear sprays, and lighter emulsions where the water phase is central to the product feel.
Can PBSA be used at the same level in every country?
PBSA should not be planned at one universal level. BFP-SP PBSA materials list different maximum concentration references for the United States, Australia, the European Union, and Japan.
What should buyers check before sourcing BFP-SP PBSA?
Buyers should check the specification, INCI, CAS number, appearance, package size, market limit, formula role, and sample plan before moving from evaluation to bulk purchase.