Knowledge
Can You Use Red Light Therapy and Microcurrent Together?
Yes — red light therapy and microcurrent can be used together, and for most users with multiple anti-aging concerns, combining both technologies produces better results than either alone. They work... Read more »
Electroporation vs Iontophoresis: What's the Difference and Which Is Right for Your Skin?
Electroporation and iontophoresis are both electrical methods for enhancing skincare ingredient delivery through the skin — but they operate through different physical mechanisms, deliver different types of... Read more »
What Is RF Frequency in Skincare Devices — And Why Does It Matter for INIA SPHERA?
RF frequency in skincare devices refers to radiofrequency — a form of electromagnetic energy that generates controlled heat in the deeper layers of skin to stimulate collagen production and... Read more »
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 »
Vitamin C for Acne Scars: Does It Work? (2026 Evidence Guide)
Vitamin C (ascorbic acid) addresses two of the main markers acne leaves behind: flat dark marks called post-inflammatory hyperpigmentation (PIH) and, to a lesser degree, the structural changes from collagen... Read more »
What Is TEWL? Transepidermal Water Loss Explained (2026)
TEWL — transepidermal water loss — is the passive evaporation of water through the skin to the external environment. The average person loses approximately 300–400ml of water through... Read more »
Retinoids vs Retinol: Differences, Strength & Which to Use (2026)
Retinoid is the umbrella term for all vitamin A derivatives; retinol is one specific, widely available OTC member of that family. The key difference is how quickly each form converts to retinoic acid —... Read more »
How Much Does Red Light Therapy Cost? (2026 Complete Guide)
Red light therapy cost varies significantly depending on whether you use a clinic or an at-home device. Clinic sessions typically run $25–$200 per visit, while quality at-home devices range from... 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 »
Planet Fitness Total Body Enhancement: What It Is, What It Does, and What to Expect (2026)
Planet Fitness Total Body Enhancement (TBE) is a 12-minute booth session that combines red light therapy (620–700nm) and whole-body vibration in a standing enclosure. It is available to Planet Fitness... 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 »