Wellness and Anti-aging Applications
Wellness and Anti-aging Applications
Red Light Therapy – Red Light Therapy
Low level laser therapy (LLLT) or photobiomodulation also known as red light therapyhas gained popularity recently for its various potential benefits. It has recently become a frequently used treatment method in beauty and anti-aging clinics, especially in Los Angeles, USA.
It is observed that red light therapy is a new generation treatment alternative, especially when its effects such as cellular rejuvenation, wound healing, skin renewal and increased collagen production are taken into consideration.
Clinical studies show that it may aid wound healing, reduce inflammation, and relieve pain. Additionally, red light therapy has been shown to be promising in improving skin health, promoting hair growth, and enhancing muscle recovery. Some studies also show that its potential in treating conditions such as osteoarthritis and temporomandibular joint disorders is quite promising. As research continues, these findings point to a number of potential therapeutic applications for red light therapy in different medical fields.
Red light therapy uses low-level light to stimulate cellular functions and increase cell potential. In this way, renewal at the cellular level and an increase in tissue and organ functions can be observed.
If we were to compile the general effects shown in clinical studies:
1. Wound healing: Red light therapy can accelerate wound healing by promoting cellular repair and regeneration. There are very successful studies on increasing tissue healing after injuries or surgical procedures (1,2).
2. Anti-Inflammatory Effects: Studies show that red light therapy reduces inflammation by modulating inflammatory mediators. We can say that this anti-inflammatory effect has an effect on conditions involving chronic inflammation (3). This emerges as a very important tool, especially for inflammatory conditions related to trauma, inflammatory conditions in the brain caused by neurodegenerative diseases or conditions such as stroke, and chronic joint problems.
3. Pain Reduction: Therapy may help relieve pain by affecting cellular processes involved in pain signaling. This has been studied and shown to be effective in conditions such as arthritis, musculoskeletal disorders (4) and neuropathic pain (5).
4. Skin Health: Red light has been shown to have positive effects on the skin, stimulating collagen production and improving skin tone. It is used in conditions such as acne, dermatitis and to reduce signs of aging. Red light therapy, which is especially applied as an anti-aging treatment, reduces wrinkles on the skin and increases collagen production, and can achieve a visible rejuvenation with sessions performed at certain intervals (6,7).
5. Hair Growth: Research shows that red light therapy can promote hair growth by increasing blood flow to hair follicles and encouraging the proliferation of cells in the scalp. Particularly in cases of androgenic alopecia, very positive effects are observed and a significant increase in the number of hair follicles can be achieved (8).
6. Muscle RecoveryAthletes and individuals involved in physical activities may benefit from red light therapy as it has been shown to aid muscle recovery and reduce muscle fatigue. It has been observed that red light therapy applied after intense muscle fatigue and damage significantly accelerates muscle recovery parameters (9).
7. Joint DisordersPreliminary studies indicate the potential of red light therapy in the treatment of conditions such as osteoarthritis and temporomandibular joint disorders (10), but more research is needed in these areas to clearly talk about a definitive effect.
Although RLT does not have any significant side effects, it is a light source. Therefore, patients with SLE (Systemic lupus) or photosensitivity due to certain medications should avoid RLT.
References
1. Giannakopoulos, E. et al. (2022) 'The effects of low power laser light at 661 nm on wound healing in a scratch assay fibroblast model', Lasers in Medical Science, 38(1). doi:10.1007/s10103-022-03670-5.
2. Yadav, A. and Gupta, A. (2017) 'Noninvasive red and near‐infrared wavelength‐induced photobiomodulation: Promoting impaired cutaneous wound healing', Photodermatology, Photoimmunology & Photomedicine, 33(1), pp. 4–13. doi:10.1111/phpp.12282.
3. R Hamblin, M. (2017) 'Mechanisms and applications of the anti-inflammatory effects of photobiomodulation', AIMS Biophysics, 4(3), pp. 337–361. doi:10.3934/biophy.2017.3.337.
4. Pires de Sousa, MV et al. (2016) 'Transcranial low-level laser therapy (810 nm) temporarily inhibits peripheral nociception: Photoneuromodulation of glutamate receptors, prostatic acid phophatase, and adenosine triphosphate', Neurophotonics, 3(1), p. 015003. doi:10.1117/1.nph.3.1.015003.
5. Kobiela Ketz, A. et al. (2016) 'Characterization of macrophage/microglial activation and effect of photobiomodulation in the spared nerve injury model of neuropathic pain', Pain Medicine [Preprint]. doi:10.1093/pm/pnw144.
6. Couturaud, V. et al. (2023) 'Reverse skin aging signs by red light photobiomodulation', Skin Research and Technology, 29(7). doi:10.1111/srt.13391.
7. Wunsch, A. and Matuschka, K. (2014) 'A controlled trial to determine the efficacy of red and near-infrared light treatment in patient satisfaction, reduction of fine lines, wrinkles, skin roughness, and intradermal collagen density increase' , Photomedicine and Laser Surgery, 32(2), pp. 93–100. doi:10.1089/pho.2013.3616.
8. Yang, K. et al. (2021) 'Hair growth promoting effects of 650 nm red light stimulation on human hair follicles and study of its mechanisms via RNA sequencing transcriptome analysis', Annals of Dermatology, 33(6), p. 553. doi:10.5021/ad.2021.33.6.553.
9. Silveira, PC et al. (2016) 'Low-level laser therapy attenuates the acute inflammatory response induced by muscle traumatic injury', Free Radical Research, 50(5), pp. 503–513. doi:10.3109/10715762.2016.1147649.
10. Al-Quisi, AF et al. (2019) 'Efficacy of the LED red light therapy in the treatment of temporomandibular disorders: Double blind randomized controlled trial', Pain Research and Treatment, 2019, pp. 1–5. doi:10.1155/2019/8578703.