Qiaocheng City Introduces You to the Classification of At-Home Beauty Devices
In recent years, at-home beauty devices have surged in popularity. Boasting cutting-edge technology, stylish designs, portability, and simple operation, they have become favorites among skincare enthusiasts and fashion trendsetters, as well as must-have gadgets for homebodies who prefer skipping in-salon treatments.
Based on their working principles, at-home beauty devices fall into three main categories: acoustic, light-based, and electric.
First: How Do Beauty Devices Use "Sound Waves"?
The primary application is the facial cleansing brush. Cleansing brushes use sonic vibration and gentle mechanical friction to shake dirt and impurities out of skin crevices and pores, separating them from the skin surface.
Second: How Do Beauty Devices Use "Light"?
Similar to the principle of laser treatments for superficial skin pigmentation, beauty devices leverage the fact that different substances absorb light of specific wavelengths differently to address various skin concerns.
Most devices marketed for brightening and rejuvenation—such as photon rejuvenation devices—emit light in the 500–1000 nm wavelength range. At a microscopic level, this light shatters melanin, breaking pigment particles into smaller fragments that are either shed from the skin’s surface or cleared away by the body’s phagocytes, achieving a skin-brightening effect.
Hair removal devices operate on the same logic: the pigment in hair follicles absorbs light energy, which then damages the follicle. Although the wavelength of at-home hair removal devices is less precise than that of professional medical lasers, consistent, repeated use can still deliver effective hair reduction.
Red/blue light beauty devices share the same mechanism as clinical red-blue light therapy.
Red light gently heats the skin, stimulates the production of cytokines, slows inflammation, and promotes the resolution of inflammatory lesions.
Blue light triggers porphyrins produced by acne-causing bacteria to absorb light energy, generating singlet oxygen and free radicals that eliminate bacteria. For this reason, red-blue light devices are mainly used to reduce inflammation in acne-prone skin.
Hair-growth caps and combs emit red and near-infrared light in the 630–780 nm range, which activates cytochrome c oxidase. This initiates a cascade of intracellular reactions, including oxidation-reduction processes, electron transport, and increased secretion of vascular endothelial growth factors—all favorable conditions for promoting hair regrowth.
Third: How Do Beauty Devices Use "Electricity"?
The main application here is radiofrequency (RF) devices and skin-tightening devices.
These tools use radiofrequency energy or electric current to heat the skin, causing an immediate contraction of collagen in the dermis and altering the helical structure of collagen fibers. This achieves visible skin tightening and lifting effects.