Choosing the right LED face mask isn’t about picking a pretty color—it’s about selecting the precise wavelength that targets your unique skin concern. This comprehensive guide breaks down the science behind red (anti‑aging, collagen), blue (acne‑fighting), green (hyperpigmentation), yellow (redness), and near‑infrared (deep repair) light. Learn which wavelengths deliver proven results, why nanometers matter more than marketing, and what to look for in a safe, FDA‑cleared device—from uniform LED distribution to therapeutic intensity. Whether you’re battling wrinkles, breakouts, or uneven tone, this article equips you with the knowledge to invest wisely. Backed by clinical insights and practical tips, it’s your roadmap to achieving radiant skin through phototherapy. Trust LEDKM’s expertise to help you make an informed, science‑driven decision.