This may be the issue that buyers of foot-fetish silicone toys care about the most. I've been asked this question many times, so today I'm making a dedicated summary to address it.
For adult silicone toys that come into direct contact with the skin, material safety is the top priority. If you only care about price and ignore quality, then you can stop reading here. Below are the key guidelines and standards for silicone materials used in adult toys:

I. Safe Material Selection
1. First Choice: Medical-Grade Silicone (Platinum-Cured Silicone)

Characteristics: Soft, skin-friendly texture; can be thoroughly sterilized by boiling in hot water; suitable for sensitive skin.

Advantages: Chemically stable, excellent biocompatibility, non-toxic and harmless.

2. Pitfall Avoidance Guide
(1) Yellow-Light Warning Materials

TPE/TPR materials: Their porous structure easily traps dirt and bacteria, cannot be completely sterilized, and may leach unknown chemical substances. Skin contact carries potential risks.

(2) Red-Light Danger Materials

PVC and cheap "jelly" materials: Often have a strong, pungent odor and may contain harmful plasticizers. Long-term contact poses potential health hazards.

II. Three-Step Safety Self-Check

Look: When purchasing, carefully check the product description. Does it clearly state keywords such as "platinum silicone" or "medical-grade" Be cautious of products that vaguely claim to be just “silicone."

Smell: Immediately after unboxing, smell the product. If there is a strong, pungent plastic or artificial fragrance odor, it indicates that the silicone material is not suitable for direct skin contact.

Protect: During use, always pair the product with a water-based lubricant. Oil-based lubricants can damage the material, reducing both its lifespan and safety.

III. Certifications and Standards

International Certifications: FDA and CE certifications.