Silicone Elastomer Gels
Many types of silicone are rated a 1 on the Skin Deep Environmental Working Group Page.
Skin deep gives chemicals a toxicity rating from 1-10 with 10 being the worst.
Here is an example:
Dimethicone (a silicone) has a rating of 1-3 depending on how much you use.
Other MODERATE concerns: Organ system toxicity (non-reproductive); Other LOW concerns: Data gaps, Ecotoxicology
About DIMETHICONE: Dimethicone (also called polymethylsiloxane) is a silicon-based polymer used as a lubricant and conditioning agent.
Function(s): Antifoaming Agent; Skin-Conditioning Agent - Occlusive; Skin Protectant; EMOLLIENT; SKIN CONDITIONING; SKIN PROTECTING
Synonym(s): DIMETHICONE COPOLYOL; DIMETHYL SILICONE; HIGHLY POLYMERIZED METHYL POLYSILOXANE; METHYL POLYSILOXANE; SILICONE L-45; DC 1664; DIMETHICONE 350; DIMETICONE; DOW CORNING 1664; MIRASIL DM 20; VISCASIL 5M
https://www.ewg.org/skindeep/search.php ... imethicone