Bonita Tawas Calamansi soap is a product that aims to brighten the skin, fight body odor, and provide antibacterial benefits, using ingredients like Tawas (Potassium Alum), calamansi extract, and niacinamide. It is marketed as a face and body bar that can help with concerns like dark underarms and uneven skin tone. Some sources mention it is suitable for all skin types and has a citrus scent.  
Key features and benefits
Skin brightening: The soap is designed to help brighten the skin, reduce dark spots, and even out skin tone. 
Odor elimination: It uses Tawas and calamansi to act as a natural deodorant, fighting odor-causing bacteria. 
Exfoliation: It may have exfoliating benefits that help to remove dead skin cells. 
Acne prevention: The formulation includes ingredients that help prevent pimples and breakouts. 
Moisturizing and softening: It is intended to leave skin feeling soft and hydrated. 
Ingredients
Tawas (Potassium Alum):
A natural mineral salt known for its deodorizing and antibacterial properties. 
Calamansi Extract:
A citrus fruit known for its natural bleaching properties and antibacterial qualities. 
Niacinamide:
Also known as Vitamin B3, it helps with brightening and improving skin tone. 
Persimmon Extract:
Often included in the formula for its skin-toning benefits. 
Important safety information
Some products containing calamansi are not recommended for daily use on the skin, as it can cause irritation. It is safest to use products that already have the ingredient in their formula rather than applying pure calamansi juice.
It is advisable to be cautious when purchasing from unauthorized sellers, as some cosmetic products have been issued FDA warnings due to a lack of product notification, which means their quality and safety cannot be assured. 
Always perform a patch test before using any new cosmetic product on your skin. 
 
Results may vary from person to person.