Why is Moa spicy? Administrator April 04, 2018 23:21 Updated Black cumin, also known as black seed, makes Moa spicy, not the black pepper that is also found in the product. Related articles Moa ARIIX Product Guide PDF How should I take Moa? How many times a day can I take Moa? Is NATRIIX™ effective? Comments 0 comments Please sign in to leave a comment.