Cosmeceutical Critique

What We Know About Salmon Sperm in Dermatology

Publish date: September 25, 2024

Most Recent Findings

In August 2023, MJ Kim and colleagues became the first to report on the successful use of PNs derived from fish sperm as a volumizing treatment for fat atrophy in vivo (in the temple in one case, and the cheek in the other). Injections were made into the subcutaneous layer to treat iatrogenic volume loss resulting from lipolysis injections. In one case, a depression in the left temple of a 53-year-old female lipolysis patient was treated with a series of 1 cc PN injections in a 20 mg/mL concentration. At 1 month after the final series of injections (four treatments), significant clinical improvement was observed, with the result (barely visible depression) maintained at 11 months and 21 months after the last treatment. The second patient, a 34-year-old female, presented with two depressed areas on the left cheek 2 months after steroid injections for two acne lesions. A series of PN filler injections also with a concentration of 20 mg/mL was administered (four treatments) at 1-month intervals. Significant improvement was seen 2 months after the last treatment, with maintenance of complete healing noted at 5 months and 12 months after the final treatment. No adverse effects were reported in either case. The investigators concluded that long-chain PN fillers appear to be effective in treating depressions in the skin, but more data, particularly from controlled studies, is necessary to determine the safety and efficacy as a lone therapeutic approach for soft-tissue depression.⁶

^{Baumann Cosmetic & Research Institute}

Dr. Leslie S. Baumann

A month later, Lee and colleagues reported on the results of their survey of clinicians in South Korea who use PNs in clinical practice. The goal was to understand current practices and perceptions of effectiveness in treating facial erythema. Of the 557 physicians who participated, 84.4% used PNs for facial erythema provoked by inflammatory facial dermatosis, 66.4% for facial erythema induced by repeated laser/microneedle radiofrequency, and 47.4% for facial erythema caused by steroid overuse. In these same classifications, 88.1%, 90%, and 83.7%, respectively, found PNs to be “highly effective” or “effective.” Survey respondents also characterized PNs as imparting wound healing/regeneration (95.8%), skin barrier protection (92.2%), hydration (90.5%), vascular stabilization (81.0%), and anti-inflammatory activity (79.5%).¹¹

Conclusion

The use of salmon sperm cells is an example of the recent trend toward a cellular approach in which cutaneous components are activated with the intention of stimulating tissue regeneration. It is commonly used in Brazil and my Brazilian patients seem to know all about it. This innovative outlook is intriguing as are a spate of recently reported results. Nevertheless, much more evidence is required to ascertain safety and effectiveness in large sample sizes and, ideally, to establish maintenance of corrections over longer periods whether these ingredients are used in filling agents or topical formulations.

Dr. Baumann is a private practice dermatologist, researcher, author, and entrepreneur in Miami. She founded the division of cosmetic dermatology at the University of Miami in 1997. The third edition of her bestselling textbook, “Cosmetic Dermatology,” was published in 2022. Dr. Baumann has received funding for advisory boards and/or clinical research trials from Allergan, Galderma, Johnson & Johnson, and Burt’s Bees. She is the CEO of Skin Type Solutions, a SaaS company used to generate skin care routines in office and as a e-commerce solution. Write to her at dermnews@mdedge.com.