Information about the two products

Based on your questions and the product information, here are the details about the two products, likely referring to Vitamin C E Ferulic and Stabilized Vitamin C (Natural-C Glycol™) Serum:

1. Are they ready to use?
   Yes, both products are ready-to-use serum formulations.

2. Bottle cap type for 50ml?
   The 50ml bottle comes with a pump cap.

3. Product texture and film?
   User experiences with the texture vary. Some users find they absorb well, while others report a sticky feeling or that they are too dry and not moisturizing enough. The Stabilized Vitamin C (Natural-C Glycol™) Serum is described as a light yellow clear liquid. Whether they leave a film sensation depends on individual skin type and preference.

4. Which is better for wrinkle reduction?
   Both formulas, Vitamin C E Ferulic and Stabilized Vitamin C (Natural-C Glycol™) Serum, contain forms of Vitamin C (Ascorbic Acid) along with other ingredients known for their antioxidant and collagen-stimulating properties, which theoretically help reduce wrinkles. Vitamin C E Ferulic uses Vitamin E and Ferulic Acid to enhance stability and effectiveness. Stabilized Vitamin C (Natural-C Glycol™) Serum contains 15% L-Ascorbic Acid in a stabilized liquid form. While both are designed to help with signs of aging like wrinkles, the actual results can vary significantly from person to person. Some users report seeing wrinkle reduction, while others may see different benefits or no significant effect on wrinkles, as individual responses depend on genetics and skin characteristics.