What are these Japanese face lotions?

[OutOfPlay]

And when is best to use them please (e.g. before/after moisturiser or evening only)?

I have googled and think the red one has retinol in, but can’t see anything that matches them exactly?

The red one is from the alpha line, their 'anti ageing' line, I think it contains retinyl palmitate which is a controversial ingredient, wouldn't be my first choice for a retinoid, anyhow and it's unlikely to do much of anything in this type of formulation. Think it may also contain collagen iirc. Going by the size it's probably the milk version, which depends on your skin type, in hot humid Japan they usually use the milks as moistuiser for oilier skin in summer or as an extra layer under another moistuiser for very dry skin in winter.

The one on the right is the 'premium' Hada Labo version, lots of different types of hyaluronic acid weights for severely dehydrated and usually dry skin, use as a serum.

I don't know if you got the normal or extra moist versions, as they usually come in both, you'll have to check on Ratzilla's blog.

Right one is HLA.

The yellow one is great for dehydrated skin. It’s hyaluronic acid so use a few drops on damp skin then seal with a moisturiser.

Great, thank you all! But nervous to use the red one now but the yellow one sounds like just what I need

Yellow one is awesome!

The red one won't be very strong so should be fine to use in the evenings

Try alternating between the two in the evenings