Dibenzylaminophenylpropyl Methoxycarbonyl Benzylmethyloxoazetidine: 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 27, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Dibenzylaminophenylpropyl Methoxycarbonyl Benzylmethyloxoazetidine?

Dibenzylaminophenylpropyl Methoxycarbonyl Benzylmethyloxoazetidine is a lab made molecule developed to soften and shield the skin. Chemists combined two benzyl groups with a small four-membered ring called an azetidine then added a methoxycarbonyl unit. The result is a silky oil-like substance that spreads easily and leaves a light, breathable film on the skin.

The ingredient has no natural plant or animal source; it was created in the early 2000s as brands searched for alternatives to heavier silicones. By tweaking the side chains scientists produced a compound that feels rich but not greasy and resists breaking down when exposed to air or light.

Manufacturing starts with phenylpropylamine that is reacted with benzyl chloride. Further steps attach the methoxycarbonyl group and close the azetidine ring. Each stage happens in closed reactors to keep the product pure and free from unwanted by-products. After purification the ingredient looks like a clear lightweight liquid with a faint floral scent that fades once blended into a formula.

You will most often see Dibenzylaminophenylpropyl Methoxycarbonyl Benzylmethyloxoazetidine in face and body moisturizers, overnight masks, anti-aging creams, hand lotions and after-sun balms. It is also used in creamy makeup such as foundations and tinted moisturizers where it boosts glide and comfort.

Dibenzylaminophenylpropyl Methoxycarbonyl Benzylmethyloxoazetidine’s Cosmetic Benefits/Uses

This versatile ingredient supports both feel and protection in many skin care products

  • Emollient – fills in tiny cracks between skin cells to make the surface feel soft smooth and flexible. It improves spreadability of a formula so it glides on without tugging and helps lock in existing moisture
  • Skin protecting – forms a lightweight barrier that shields the skin from wind cold and pollution. This film reduces water loss which can ease dryness and irritation throughout the day

Who Can Use Dibenzylaminophenylpropyl Methoxycarbonyl Benzylmethyloxoazetidine

This ingredient suits most skin types. Dry and normal skin often welcome its rich cushioning feel while combination and oily skin usually tolerate it because the finish is light rather than greasy. Very acne-prone skin may prefer to use it sparingly since any emollient film can occasionally trap excess oil if layers of heavy products are applied on top.

The molecule is completely synthetic so it contains no animal derived material. That makes it acceptable for vegans and vegetarians provided the finished product has not been animal tested by the brand or required by local law.

No studies link Dibenzylaminophenylpropyl Methoxycarbonyl Benzylmethyloxoazetidine to hormonal disruption or fetal risks. It is considered low risk for women who are pregnant or breastfeeding yet this is not medical advice. Anyone expecting or nursing should show the full ingredient list of any product to a qualified healthcare professional before use just to be safe.

The ingredient does not cause photosensitivity and it remains stable when exposed to sunlight so there is no special need for additional sun protection beyond the daily SPF dermatologists already recommend.

Potential Side Effects/Adverse Reactions

Side effects and reactions to topical Dibenzylaminophenylpropyl Methoxycarbonyl Benzylmethyloxoazetidine vary from person to person. The points below list potential issues yet most people will not notice any problems when the ingredient is formulated and used as intended.

  • Mild redness or stinging on very sensitive skin
  • Contact dermatitis in individuals allergic to benzyl derivatives
  • Temporary pore clogging if applied in very thick layers on already oily skin
  • Interaction with leave-on exfoliating acids that may increase their penetration causing unexpected tingling

If any unwanted reaction occurs stop using the product and seek advice from a healthcare professional.

Comedogenic Rating

Rating: 1 / 5

Dibenzylaminophenylpropyl Methoxycarbonyl Benzylmethyloxoazetidine has a small flexible structure that spreads thinly and does not harden inside pores which keeps its tendency to clog low. It is lighter than many plant butters and lacks long fatty acid chains that usually raise comedogenicity. The rating could edge higher in formulas that combine it with rich waxes or heavy oils but on its own it sits near the lower end of the scale.

Most people prone to acne or breakouts can use products containing this ingredient without major concern

Because ratings are only guides the finished product texture the amount used and the rest of the ingredient list will always influence final pore clogging potential

Summary

Dibenzylaminophenylpropyl Methoxycarbonyl Benzylmethyloxoazetidine acts as both an emollient and a skin protecting agent. It slips into the tiny gaps between skin cells to make the surface feel soft then leaves a breathable shield that slows water loss and guards against environmental stress. This dual action comes from its oily yet lightweight backbone that spreads evenly and stays stable when exposed to light or air.

The molecule is still a quiet achiever rather than a household name. Brands looking for silicone alternatives in premium creams and makeup are its main fans while mass market lines have yet to adopt it widely.

Current safety data classifies it as low risk with rare reports of irritation or allergy. As with any new skincare ingredient you may want to patch test a product before full-face use just to be on the safe side

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