Benzylidenecamphor Hydrolyzed Collagen Sulfonamide: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 23, 2025
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All information on this page is verified using publicly available nomenclature standards and reference materials from The Personal Care Products Council (PCPC) and the European Commission's CosIng database. Our analyses are based on technical data from these sources to ensure accuracy and reliability.

What Is Benzylidenecamphor Hydrolyzed Collagen Sulfonamide?

Benzylidenecamphor Hydrolyzed Collagen Sulfonamide is a hybrid ingredient that combines two familiar cosmetic workhorses. One part comes from hydrolyzed collagen, the broken-down protein most often sourced from fish or bovine skin that is prized for its affinity with human hair and skin. The other part is a benzylidenecamphor group, a small UV-absorbing molecule originally explored in sunscreens during the 1970s. Chemists join these two pieces through a sulfonamide link, creating a single material that can condition, shield and protect.

The ingredient was first investigated when formulators wanted a way to keep collagen on the skin surface longer while adding built-in UV defense. By attaching the sun-filter fragment to the protein fragment they could do both at once. Today the compound is made in three steps: collagen is hydrolyzed into small peptides, the camphor-based UV filter is activated into a sulfonyl chloride form then the two are reacted together under controlled pH to form the final sulfonamide. The finished material is usually supplied as a water-dispersible powder.

You will most often spot Benzylidenecamphor Hydrolyzed Collagen Sulfonamide in leave-on hair masks, color-protection shampoos, daily facial moisturizers, anti-aging serums, lightweight sunscreens and after-sun gels.

Benzylidenecamphor Hydrolyzed Collagen Sulfonamide’s Cosmetic Benefits/Uses

This multi-tasking ingredient brings a trio of helpful actions to modern formulas:

  • Hair Conditioning: The collagen portion forms a light film along the cuticle that smooths rough spots, boosts softness and helps reduce breakage during brushing
  • Skin Protecting: Its peptide backbone can bind water and create a breathable shield that limits moisture loss, making skin feel supple and comfortable
  • UV Absorber: The benzylidenecamphor side soaks up parts of the UVA and UVB spectrum helping defend both hair color and skin surface proteins from sun-triggered damage

Who Can Use Benzylidenecamphor Hydrolyzed Collagen Sulfonamide

Because it is lightweight and non greasy Benzylidenecamphor Hydrolyzed Collagen Sulfonamide works well for most skin types including dry, normal, combination and even oily skin that still needs a soft moisture film without heavy oils. Sensitive skin usually tolerates it since the collagen fragments are soothing, though anyone with a known sulfonamide or protein allergy should steer clear to avoid irritation.

The collagen portion is animal derived in current commercial supply so the ingredient is not suitable for vegans or strict vegetarians who avoid animal by-products. Formulators sometimes explore marine plant peptides as substitutes, but unless a label clearly states plant origin you can assume the collagen comes from fish or bovine sources.

No specific warnings exist for topical use during pregnancy or while breastfeeding. The molecule does not readily penetrate deeply and has not shown hormone activity, so most experts consider it low risk. Still this is not medical advice; anyone who is pregnant or nursing should check with a doctor before adding new cosmetics just to be safe.

The ingredient does not cause photosensitivity. In fact the benzylidenecamphor section helps absorb UV, offering minor extra protection when layered under standard sunscreen. There are no known conflicts with leave-on acids, retinoids or hair colorants, making it a flexible add-on for daily routines.

Potential Side Effects/Adverse Reactions

Reactions to topical Benzylidenecamphor Hydrolyzed Collagen Sulfonamide differ from person to person. The issues listed below are only potential effects and are unlikely for the average user when the ingredient is properly formulated.

  • Mild redness or stinging in individuals allergic to sulfonamides
  • Itch or rash in those with collagen or fish protein sensitivities
  • Build-up or heavy feel on very fine hair if used in high concentrations
  • Rare contact dermatitis when combined with other strong actives like high-dose glycolic acid

If any unexpected irritation or discomfort appears stop using the product and consult a healthcare professional for guidance.

Comedogenic Rating

Rating: 1 / 5  The hydrolyzed collagen backbone is water loving and sits on the surface without clogging pores, while the benzylidenecamphor fragment is small and typically used at low levels similar to other non-oily UV filters. Together they create a lightweight film that is unlikely to trap excess sebum or dead cells, so the risk of blocked pores is minimal. Overall this ingredient is considered suitable for acne-prone or breakout-prone skin in most formulations. Very occlusive bases or high concentrations could shift the rating upward, but these scenarios are uncommon in commercial products.

Summary

Benzylidenecamphor Hydrolyzed Collagen Sulfonamide conditions hair, shields skin and hair from moisture loss and absorbs a slice of UVA and UVB light. It manages this by pairing water binding collagen peptides with a sun filtering benzylidenecamphor group linked through a stable sulfonamide bond. The result is a single multitasker that can smooth strands, add a soft protective film and lend bonus UV defense.

The ingredient remains a niche choice compared with mainstream silicones or standalone UV filters, largely because it costs more to make and is sourced from animal collagen. Still formulators looking for an all-in-one conditioning UV protector value its versatility and easy water dispersion.

Topically it is regarded as low risk for most users; reports of irritation are rare and it shows no hormonal or photosensitizing concerns. As with any new cosmetic component, it is smart to patch test when trying a product that features Benzylidenecamphor Hydrolyzed Collagen Sulfonamide to confirm personal compatibility.

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