What is the "natural fragrance" like? is it strong? Would it bother someone with allergies?

The natural fragrance is a combination of the ingredients themselves. There are some ingredients that overpower others. Such as the menthol (menthae) and the eucalyptus which generally have strong scents. The scent smells somewhat like a wintergreen and peppermint type scent.

Out of the box/ziplocked package the scent is stronger than once applied as the scent will dissipate. Whether it bothers someone or not is a preference. Jadience states that they never had any issues with the scent. However that is a personal preference and would depend on what someone may be allergic to.