To answer your question effectively, I would need to know which specific product you are referring to. However, generally speaking:

• Who can use a product? This depends on the product type, its ingredients, and intended use. Some products are suitable for all adults, while others may have age, gender, or health condition restrictions.

• Effects noticed: These vary widely depending on the product. For example, skincare products might improve skin texture or hydration, medications might relieve symptoms, and supplements might support overall health.

If you can provide the name or type of the product, I can give you detailed information about who should use it and what effects to expect, especially considering your age and gender. Meanwhile, I recommend consulting a specialist doctor relevant to the product’s purpose for personalized advice.