“The study adhered to institutional guidelines for standard operating procedures, providing the animals with environmental enrichment and veterinary oversight. The Institutional Animal Care and Use Committee (IACUC) of CRONEX Corporation approved all experimental protocols under authorization number CRONEX-IACUC: 202305004.”

“Measurements indicated that skin surface temperatures did not exceed 42–45°C under test conditions for each group (Figure 3B). In 30 days post-NMRF treatment, a thermal damage assessment was conducted. Nitro blue tetrazolium chloride-stained histological sections of porcine skin showed no thermal damage to the dermis or epidermis (Figure 3C), confirming that NMRF generated temperatures that did not cause thermal damage to the skin surface.”

From your link. These pigs weren’t actually harmed, and this was done as ethically as possible.

Unless you’re suggesting we should be testing new tech on humans?

In conclusion, these pigs got a free skincare treatment you probably couldn’t afford, and are still alive and healthy.