Models heat up at a press of a metal disc and most double as cold packs. Many are shaped for specific body parts and come in various designs and colors.

PVC-nylon hot/cold pack

Foshan Soft Medical & Health Care Products Co. Ltd
Foshan Soft’s CH-400N model warms and cools the body using a temperature-sensitive nontoxic gel inside its flexible PVC-nylon pack. The 28x14cm reusable pack can be heated in a microwave and cooled in a freezer. It can come in custom shapes, colors, sizes, weight, prints and packaging. OEM and ODM orders are accepted.

Hot/cold face mask

Foshan Soft Medical & Health Care Products Co. Ltd
Foshan Soft offers the model CH-250 hot or cold pack, which is flexible and can be contoured to fit the face. It has holes for the eyes, nose and lips. The plastic mask utilizes temperature-sensitive nontoxic gel. The microwave- and freezer-safe model measures 26x22cm. Custom requirements, OEM and ODM orders are accepted. MOQ is 2,000 pieces.

Activates via a metal button

Shanghai Himmers Industrial & Trading Co. Ltd
With a press of its inner metal button, Shanghai Himmers’ model HMCB-2203 liquid gel pack crystallizes and heats up instantly. The pack can be reused after being heated for five minutes in a boiler with hot water and a piece of fabric until the crystals return to their liquid form. The nontoxic and -caustic model measures 10x8.5cm and weighs 60g.

Soothes the eyes

Shanghai Neo-Medical Co. Ltd
The NM-HC-035 model from Shanghai Neo-Medical warms the eyes. It can also serve as a cold compress after being refrigerated for half an hour. The PVC pack is nontoxic and -caustic. It can be used for promotional, gift, spa and personal-care purposes. MOQ is 3,000 pieces.

Withstands -18 C

Shanghai Xuerui Imp & Exp Co. Ltd
Shanghai Xuerui’s model XR-LR115 hot/cold pack remains soft even in -18 C. The model can be heated in water in 30-second intervals at medium microwave power until it reaches desired temperature. It can also be soaked in hot water for three to five minutes at 80 to 90 C or refrigerated for half an hour. Using the nontoxic and -caustic pack as hot compress is said to relieve rheumatic, neural and vertebral pain, sciatica, and improve mucous membrane scar after surgery. When used as cold compress, it is said to aid physical therapy for traumatic hemorrhage, heatstroke, itch, headache, strain, scald and fatigue. The 20x8cm pack can be made of PVC or PE and PA or nylon and PVC. It weighs 115g. MOQ is 5,000 pieces.

Clings to the neck and shoulders

Xiamen Artborne Industrial Co. Ltd
The model MHP9 heat pack from Xiamen Artborne is designed to drape across the neck and shoulder through two slits at the sides and a belt support. It can also be utilized on other body parts. The pack heats up instantly when the inner metal disc immersed in food-grade sodium acetate gel is pressed. Temperature reaches 50 to 57 C and can last more than one and a half hour. The pack can be reused by placing it on a cloth in hot water for five to 15 minutes to decrystallize the contents. The model also doubles as a cold pack when refrigerated. The 45x20cm pack adopts a nontoxic phthalate-free PVC cover. It is available in custom colors. MOQ is 1,000 pieces.