Beauty, sterilization, skin swelling repair. Samantha seaweed phototherapy instrument is a beauty instrument. There are four types of phototherapy, namely red light, blue light, green light and yellow light. The effect of phototherapy is different every time. Red light can stimulate blood flow, accelerate blood circulation, enhance human cell vitality, improve metabolism, promote collagen fiber synthesis, and increase skin elasticity and luster. Blue light can inhibit oil secretion, diminish inflammation, sterilize, eliminate acne bacilli and treat acne and scars. Green light has the function of balance and stability, and can improve rough skin, wrinkles, blackheads, acne and acne caused by fatigue and mental stress. Yellow light can effectively repair skin redness and erythema, and relieve redness and redness.