A newly discovered health benefit of annatto is its antioxidant properties that protect DNA from mutations induced by UV light, superoxides, or peroxides, hence its inclusion in skin care products. Annatto has been used for centuries to keep food from spoiling, and laboratory tests show that annatto extracts inhibit the growth of Bacillus cereus, Clostridium perfringens, and Staphylococcus aureus. One word of caution"don't add annatto to live cultures from kefir or yogurt if you want the beneficial bacteria.
Allergies to annatto in the context of an organic, whole foods diet are unheard of. Sensitivities to all food colorants, including annatto, may occur if there is also sensitivity to BHA, BHT, and artificial red and yellow dyes.
This information is for education purposes only and in no way is meant to serve as medical or professional advice. We are not responsible for any products made using botanicals or the outcome of any application thereof. As always we recommend testing all products.