Is it okay to use Vitamin C ampoules and retinol on the same day?

I've become interested in skincare lately, so I'm thinking of trying out Vitamin C ampoules and retinol products. I'm posting this because I'm wondering if it's okay to use them together!

I’ve heard conflicting opinions: some say it’s better to use Vitamin C in the morning and Retinol in the evening, while others say it’s okay to use them on the same day if your skin is fine. So I’m confused about which method is correct. My skin isn't extremely sensitive, but sometimes it gets red or stings when I use new cosmetics, so I’m a little worried about using them together right from the start.

For those of you using both Vitamin C and Retinol, what is the order and frequency of your use? I am also curious about how often per week is appropriate when first starting to use them. Please let me know if there are any ingredients to avoid or specific precautions I should take when using both products together!

I would also like recommendations for products that are easy to use😊 Please share honest reviews and skincare tips from those who have actually used them!