Is PEA safe and suitable for long-term use?
Available clinical research indicates that PEA is safe for use in both humans and animals.
What Have Studies Shown?
In repeated-dose toxicological studies in animals, no adverse effects were observed even at very high doses of more than 1,000 mg/kg of body weight – far above the doses typically used in practice.
In 6-month studies in mice and rats, no statistically significant differences were observed between treated and control groups in the:
- liver,
- kidneys,
- lungs,
- lymph nodes,
- spleen.
PEA has not been shown to be genotoxic or carcinogenic and has not demonstrated the potential to cause allergic sensitization.
In studies involving humans and animals:
- no significant adverse effects have been reported,
- no complications have been observed with long-term use.
What Does This Mean in Practice?
Due to its well-documented safety profile, PEA is suitable for supporting immune system health and overall well-being.
As PEA is a naturally occurring molecule in the body and is metabolized into non-toxic by-products, it is suitable for long-term support of the immune system, skin, joints, and nervous system regulation, without placing an additional burden on the liver, kidneys, or gastrointestinal tract.
Sources:
- Nestmann E. Safety of micronized palmitoylethanolamide (microPEA): lack of toxicity and genotoxic potential. Food Sci Nutr. 2016 Jun 15;5(2):292-309.
- Stefano V. et al. Palmitoylethanolamide: A Multifunctional Molecule for Neuroprotection, Chronic Pain, and Immune Modulation. Biomedicines 2025, 13(6), 1271.
- Clayton P. et al. Palmitoylethanolamide: A Natural Compound for Health Management. Int J Mol Sci. 2021 May 18;22(10):5305.