The claim that red light therapy is good for your skin is misleading and lacks nuance. In the article written by Katherine Hutka Fiala, MD, a dermatologist at Baylor Scott & White Clinic, the focus is primarily on five benefits associated with red light therapy. However, it does not claim that it is good for your skin, but rather that it has potential benefits and that it is not bad for your skin in terms that it has not been found to cause cancer with mild side effects. https://www.bswhealth.com/blog/5-benefits-of-red-light-therapy
A medically reviewed article from the Cleveland Clinic regarding red light therapy's effectiveness claims that because red light therapy is an emerging treatment, there is not enough evidence to support most uses of it. Furthermore, there is a lack of randomized placebo-controlled trials, which use a certain number of people within the study who share a range of characteristics and either get a treatment or a placebo, according to the Cleveland Clinic. Although there is concern that if the treatment is misused, there is a chance that either your skin or eyes could be damaged under those conditions, according to the Cleveland Clinic.https://my.clevelandclinic.org/health/articles/22114-red-light-therapy
In this review “Unlocking the Power of Light on the Skin: A Comprehensive Review on Photobiomodulation” claims "Photobiomodulation and its application in dermatology constitute a subject of discussion and recently raising interest; as a consequence, existing scientific evidence (well-structured, placebo-controlled, clinical trials) on the matter is still scarce, and a critical review of the literature does not allow to develop solid specific clinical recommendations on concrete applications." This corroborates the claims made by the Cleveland Clinic that there is a lack of well-structured, placebo-controlled, and clinical trials on the topic of red light therapy or Photobiomodulation. https://www.mdpi.com/1422-0067/25/8/4483#Future_Directions
The website, the article comes from, Baylor Scott & White Clinic, claims they are top ranking and reputable healthcare system. The article also provides no references to the benefits it claims red light therapy has on the skin. Although I could not find information that proves this point outside of the company's website. https://www.bswhealth.com
Overall, the use of red light therapy on the skin is a nuanced topic that has not had enough quality research to fully determine the efficacy of the treatment. Furthermore, calling the use of red light therapy good for the skin is an argument that lacks depth and understanding of the topic.