Hydrogenated Polycyclopentadiene

What is Hydrogenated Polycyclopentadiene?

Hydrogenated Polycyclopentadiene is a synthetic hydrocarbon polymer derived from the controlled polymerization of cyclopentadiene monomers, followed by hydrogenation to enhance stability and reduce reactivity. This process yields a tacky, adhesive resin commonly incorporated into hair removal products like epilating waxes and depilatory creams within the personal care category. It functions by creating a flexible, strong-binding film that adheres firmly to hair shafts, facilitating mechanical uprooting from follicles during epilation or supporting chemical processes that weaken hair keratin for surface-level removal in depilation. Its inert, non-oily nature contributes to a non-comedogenic profile, minimizing pore blockage risks, while its colorless and low-odor properties make it ideal for consumer formulations seeking reliable performance without sensory drawbacks.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Epilating agent
Removes hair from the root.
Depilating agent
Chemically breaks down hair’s keratin structure (commonly via thiol chemistry) to enable painless hair removal at the skin surface in depilatory creams.

Benefits

Offers reliable adhesion for thorough hair removal from roots or surface.

Non-comedogenic formula helps maintain clear pores post-use.

Stable polymer enhances product texture and ease of application.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals performing at-home hair removal routines.
Those with open wounds or active dermatitis in treatment areas.
Users preferring wax-based epilation methods.
Individuals sensitive to adhesive polymers.
People seeking non-pore-clogging hair removal options.
People using on highly irritated or sunburned skin.

Safety Notes

  • Low overall hazard rating from safety assessments.
  • Suitable for typical cosmetic concentrations without notable concerns.

Frequently Asked Questions about Hydrogenated Polycyclopentadiene

What is Hydrogenated Polycyclopentadiene used for?

Primarily in epilating waxes and depilatory products to provide adhesion for hair removal.

Is it safe for skin?

It has a low hazard profile and is non-comedogenic, suitable for most skin types.

Does it clog pores?

No, it holds a comedogenic rating of zero.