I absolutely love red light! It really works!

1. Specific Functions of Each Wavelength
 1. 630nm (Superficial Red Light)
Features: Energy is concentrated in the epidermis and preferentially absorbed by hemoglobin.
Benefits: Improves skin redness and redness (dilates capillaries, promotes blood circulation, and accelerates superficial wound healing (such as abrasions and post-laser skin repair).
Intended for: Sensitive skin, rosacea sufferers.
 2. 660nm (Dermal Red Light)
Features: Penetrates deep into the dermis and is efficiently absorbed by mitochondrial cytochrome C oxidase.
Benefits: Stimulates collagen synthesis (a key anti-aging treatment, reduces fine lines). Inhibits Propionibacterium acnes (combined with blue light for enhanced results). Activates hair follicle stem cells (for the treatment of androgenic alopecia).
 3. 810nm (Superficial Near-Infrared Light)
Features: Penetrates deep into the fascia, providing both anti-inflammatory and neuromodulatory effects.
Benefits: Relieves arthritis pain (inhibits synovial inflammatory factors). Promotes peripheral nerve regeneration (relieves numbness in diabetic neuropathy). Improves cerebral blood flow (transcranial irradiation supports cognitive function).
Research Support: FDA-approved for chronic pain management.
 4. 830nm (Mid-Range Near-Infrared)
Features: Energy is concentrated in muscles and lymphatic vessels, suitable for metabolic issues.
Benefits: Accelerates lactic acid clearance (relieves muscle soreness after exercise); Promotes lymphatic drainage (treats upper limb edema after breast cancer surgery); Softens deep scars (repairs adhesions after cesarean section).
 5. 850nm (Deep-Range Near-Infrared)
Features: Deepest penetration, affects bones and visceral capsules.
Benefits: Promotes callus formation (accelerates fracture healing after surgery); Relieves chronic visceral inflammation (such as pelvic inflammatory disease and prostatitis); Improves brain metabolism (adjunctive therapy for Alzheimer’s disease).

2. Combined Use Strategies
Superficial + Deep Repair:
630nm + 810nm Combination: Anti-aging (epidermal) + Joint Repair (deep), Suitable for Middle-Aged Health Maintenance
Anti-Inflammation + Circulation Improvement:
630nm + 850nm Combination: Redness Repair (superficial) + Muscle Metabolism (middle), Suitable for Athletes
Nerve + Vascular Dual Regulation:
850nm + 660nm Combination: Improved Cerebral Blood Flow (deep) + Enhanced Microcirculation (superficial), Suitable for Seniors

3. Golden Principles of Device Selection
Accurate Wavelength: Reject false claims of “600-1000nm full spectrum” and aim for a ±10nm tolerance.
Medical-Grade Certification: FDA/CE-certified devices are preferred.
4. Precautions
❌ Avoid prolonged (>20 minutes) high-power exposure to the same area.
✅ Protect the eye and thyroid areas.
⏳ Cumulative Effects: Continue use for 3-6 months, as cell repair requires cycles.
✨ Summary:
630-660nm: Specializes in skin issues, anti-aging and anti-inflammatory for the “face”;
810-850nm: Addresses deeper pain and repairs neuroskeletal issues for the “underlying”;
Combination Use: Mix and match according to your needs; 1+1 is greater than 2!