Gwen Stefani is an American singer and songwriter born on October 3, 1969. She is the co-founder, lead vocalist, and primary songwriter of the band No Doubt, and has also had a successful solo career. As for her beauty brand, GXVE by Gwen Stefani, it has received mixed reviews. Here are some details:

• Ingredients: At the time of launch, GXVE had a total of eight products, and the ingredients in each of them were analyzed. The brand received a "bad" rating in terms of ingredients, as they include synthetic dyes, fragrance, and BHT, which have been linked to endocrine disruption and developmental toxicity.

• Sustainability: GXVE received an "iffy" rating in terms of sustainability practices.

• Animal testing: GXVE is a cruelty-free brand, and none of its ingredients or products are tested on animals.

• Products: GXVE offers a range of beauty products, including a face oil, mascara, and eyeliner.

In summary, while Gwen Stefanis beauty brand has received criticism for its ingredients and sustainability practices, it is a cruelty-free brand. As for Gwen Stefanis age, she was born on October 3, 1969, which makes her 54 years old as of October 30, 2023.