Frequently Asked Questions
Product FAQs
We suggest removing contact lenses before using the steam eye mask. The steam may affect your lenses and eye comfort.
Yes. Our PCM cooling neck rings are reusable. Place them in a cool environment or refrigerator to recharge cooling effect. Do not freeze.
Cooling gel patches, body warmer patches and foot warmers are single-use disposable products. Discard after use.
3 years for most of our self-heating and cooling products. The expiry date is printed on each package.
We use hypoallergenic raw materials. If you have sensitive skin, we recommend a skin patch test before full use.
Yes. We have CE, MSDS and can support CPNP notification, FDA related documents according to your target market requirements.
OEM & Wholesale FAQs
MOQ varies for different items. Stock products accept small wholesale orders. OEM private label orders require higher quantity. Please contact our sales team for details.
Yes. We support custom printed packaging, private logo, different scents for steam eye masks, and raw material adjustment for cooling & heating patches.
We can offer product samples. Buyers cover the shipping cost. Sample cost will be refunded when you place bulk orders.
Stock items can be shipped within 3–7 days. OEM orders normally take 20–40 days after deposit and packaging confirmation.
We accept T/T, other negotiable payment terms.
Yes. We work with reliable freight forwarders and support EXW, FOB, CIF shipping terms.
Yiwu Guanhui Biotechnology Co., Ltd. is a professional manufacturer with multiple production workshops and automated production lines. We have rich experience in OEM & ODM for thermal and cooling care products



