Elf Spray Fixer, also known as Elf Makeup Mist & Set, is a popular product in the beauty industry. Its effectiveness, however, can be evaluated based on its ingredients and their interaction with the skin.

The primary ingredients in Elf Spray Fixer are water, alcohol, and AMP-acrylates/Allyl Methacrylate Copolymer.

1. Water: This is a universal solvent and is used in most skincare products as a base. It helps in the even distribution of other ingredients on the skin.

2. Alcohol: This ingredient helps the product to dry quickly on the skin, providing a matte finish. However, it's worth noting that alcohol can be drying for some skin types, especially sensitive or dry skin.

3. AMP-acrylates/Allyl Methacrylate Copolymer: This is a film-forming agent that helps to create a layer on the skin, ensuring the makeup stays in place.

The product also contains antioxidants like Green Tea Extract and Vitamin E, which can be beneficial for the skin. Green Tea Extract is known for its anti-inflammatory properties, while Vitamin E is a potent antioxidant that can protect the skin from environmental stressors like pollution and UV damage.

However, the effectiveness of the product can vary depending on individual skin types and conditions. While it may work well for oily skin types due to the presence of alcohol, it might not be as effective for dry or sensitive skin.

In conclusion, the Elf Spray Fixer can be an effective product for setting makeup and providing a matte finish. However, its effectiveness can vary depending on individual skin types and conditions. It's always recommended to do a patch test before incorporating any new product into your skincare routine.