Yes, Copper Peptides can be used with Tretinoin, but it is important to use them in a proper skincare routine and follow certain guidelines.

Copper Peptides are known for their skin-regenerating properties, promoting collagen production, and supporting wound healing. Tretinoin, on the other hand, is a retinoid that helps to improve skin texture, reduce fine lines and wrinkles, and treat acne.

When using both Copper Peptides and Tretinoin together, it is advisable to introduce them into your skincare routine gradually. Start by using them on alternate days or nights to allow your skin to adjust to the combination. This can help minimize potential irritation or sensitivity.

It is also important to note that Tretinoin can make the skin more sensitive to sunlight, so it is crucial to use a broad-spectrum sunscreen with a high SPF during the day. This applies even more when using Tretinoin in combination with Copper Peptides, as they can also increase the skin's sensitivity to the sun.

To get the best results, it is recommended to apply Tretinoin at night and Copper Peptides in the morning. This way, you can maximize the benefits of both ingredients without compromising their efficacy.

As always, it is advisable to consult with a dermatologist or skincare professional before incorporating new products into your routine, especially if you have sensitive or reactive skin. They can provide personalized advice based on your specific skin needs and concerns.