There were at least 5 controlled studies done to examine the effect of propolis to the masses.
The percentage of population allergic to propolis
It is generally acceptable to say that less than 10% of people are allergic to propolis.
However, the rate of sensitization to propolis or propolis derived products is actually much lower than that. It varies from 1.2% to 6.6% of the test patients.
| Reference/Researchers | Total Patients Patch-Tested | Positive Reactions to Propolis |
|---|---|---|
| Hausen BM et al | 3,177 | 38 (1.2%) |
| Guisti F et al | 1,831 | 35 (1.9%) |
| Machackova J | 605 | 25 (4.2%) |
| Reider N et al | 433 | 28 (6.55%) |
| Francesca G et al | 1255 children | 5.9 % |
| Source : Medscape Today , PubMed | ||
All of the studies above were done using patch testing method. The allergies reported were eczema and localized dermatitis on the faces, hands and limbs.
The last study involving 1255 children by Francesca G. et. al. was conducted for 8 years. The study concluded that less than 6 % of the test subject tested were allergic to propolis. Those who get contact dermatitis due to propolis were also found to be allergic to balsam of Peru ( which is not surprising since both products have common constituents).
A Word of Advice:
Please ask your doctor’s advice or ask for a patch test first before taking any propolis products. If you’ve used some propolis cream/products and appear to have the symptoms of allergy, discontinue the product.
