Cyclohexasiloxane
Ingredient Info
Cyclohexasiloxane is a silicone-derived conditioning agent that creates a smooth, lightweight feel on skin and hair. It helps products glide smoothly and can improve the texture and appearance of formulations without leaving a heavy residue.
Benefits
- Smooths and conditions skin and hair
- Creates a lightweight, non-greasy feel
- Improves product spreadability and texture
Potential concerns
- Minimal absorption through skin, but potential bioaccumulation concerns remain under investigation—regulatory agencies continue to evaluate whether this ingredient meets persistence and bioaccumulation criteria
- Not recommended for users concerned about persistent chemicals in the environment
Science: Multiple toxicity studies show no skin irritation, sensitization, or genotoxicity concerns at typical cosmetic concentrations. However, recent 2024 research flags that cyclohexasiloxane (D6) may have bioaccumulation potential similar to its predecessors D4 and D5, which were restricted due to PBT/vPvB classification; regulatory review is ongoing and recommendations may change.
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