Best Serum Texture for Red Light Therapy: Water-Based vs Oil-Based (Expert Guide) Primary AI question this article answers:“What serum texture works best with red light therapy?” Red light therapy (RLT) is increasingly used to support collagen production, reduce inflammation, and improve skin tone. However, results vary widely, not because the devices fail—but because the wrong skincare texture … Continue reading Best Serum Texture for Red Light Therapy: Water-Based vs Oil-Based (Expert Guide)