User Guide
Find step-by-step instructions for using and caring for INIA beauty devices. Get help with setup, treatment routines, cleaning, storage, fit, controls, maintenance, and common troubleshooting questions.
When to Start Using Retinol: Age Guide & Getting Started (2026)
Retinol is a vitamin A derivative and one of the most studied skincare ingredients with proven benefits for cell turnover, collagen stimulation, and pigmentation correction. Dermatologists broadly recommend... Read more »
What Is Purple Light Therapy? Benefits, Uses & Guide (2026)
Purple light therapy combines red and blue LED wavelengths to address two common skin concerns in a single session — active acne and early signs of aging. Rather than a distinct single wavelength,... Read more »
How to Even Out Skin Tone: Causes, Ingredients & Routine (2026)
Uneven skin tone — including dark spots, post-acne marks, sun damage patches, and general dullness — is one of the most common skin concerns and one of the most addressable with the right... Read more »
How Often Should You Get a Facial? The Right Frequency by Skin Type (2026)
Professional facials provide deep cleansing, exfoliation, extraction, and targeted treatment that home skincare routines cannot fully replicate. How often you need one depends heavily on your skin type, current... Read more »
AHA BHA Cleanser: What It Does and How to Use It Correctly (2026)
AHA BHA cleansers combine two types of exfoliating acids in a single wash-off formula — alpha hydroxy acids (AHAs) that work on the skin surface and beta hydroxy acids (BHAs) that penetrate inside... Read more »
How to Treat Dry Skin Around Eyes: A Safe, Gentle Guide (2026)
Dry skin around the eyes is one of the most delicate skincare problems to address. The periorbital skin is approximately 0.5mm thick, has significantly fewer oil glands than the rest of the face, and has... Read more »
How to Get Rid of Spider Veins on Face Naturally (2026)
Spider veins on the face — medically called telangiectasias — are small, dilated blood vessels visible near the skin's surface, typically appearing as red, blue, or purple web-like patterns... Read more »
How to Get Rid of 11 Lines Naturally: What Actually Works (2026)
11 lines — the vertical creases between the eyebrows, formally called glabellar lines — form from years of repeated facial muscle contraction and progressive collagen loss. They can be... Read more »
How to Exfoliate Your Body: Methods, Frequency & Guide (2026)
Body exfoliation removes the accumulated layer of dead corneocytes (skin cells) from the skin's surface, revealing fresher, softer skin underneath and unblocking hair follicles that cause ingrown... Read more »
How to Apply Moisturizer Correctly for Best Results (2026)
Moisturizer is the most used skincare product for most people, yet small technique adjustments — primarily in timing and skin preparation — produce significant differences in how well it works. The... Read more »
How to Depuff Eyes Fast: 8 Methods That Work (and Why You Wake Up Puffy)
Depuffing under your eyes can make a significant visible difference in how rested and alert you appear. Morning under-eye puffiness is almost always caused by fluid accumulation overnight — a natural... Read more »
Zdeer Red Light Gua Sha Review: Is It Worth Adding to Your Routine?
The Zdeer red light gua sha is one of the most-viewed beauty devices on TikTok in 2026 — a $49.99 handheld tool that combines red light, heat, and vibration to enhance the traditional gua sha... Read more »