How is this different from a plain retinol cream?

It uses retinol liposomes, which encapsulate the retinol to release it more gradually. That is generally gentler than an unencapsulated retinol of similar strength, though it is still a retinoid.

Can I use it every day right away?

Start two or three nights a week and build up as your skin tolerates it. Daily use from the start raises the risk of redness and flaking, especially on sensitive skin.

Can I use it around the eyes and on my neck?

It is positioned for crow's feet and neck lines, so those areas are the target. Keep it off the eyelids and use a thin layer, since the skin there is thin and prone to irritation.

Does it replace a moisturizer?

No. It is a treatment step, and retinol use increases dryness, so follow with a moisturizer. Celimax suggests pairing it with its Pore+Dark Spot moisturizing cream.

Do I need sunscreen with it?

Yes. Retinoids make skin more sun-sensitive, so use a broad-spectrum sunscreen every morning while using this.

Can it help stretch marks?

Retinoids are among the better-studied topical options for early stretch marks, and this one is marketed for them. Older, mature stretch marks respond less, and results take months.