Liz Earle

Your wife will know in dermatology terms about using light therapy for things like psoriasis.

And so we've known about light therapy for a long time.

This is not a new thing.

But I think you can get great free red light therapy.

By getting up in the morning.

By getting up early and just bathing in that natural red light.

Traditionally, I think it's the fat that was around kidneys.

You render it and you cook it down and strain it so much that it becomes flavourless, tasteless.

It's just a very bland, white fat.

You can do it.

You can make it at home if you want to.

Yeah, I wonder.

I mean, I've been trialling beef tallow because obviously I'm aware of it as a trend.

And I think it does have some pluses.

It has a lot of good fat-soluble vitamins, you know, because of where it comes from.

So A, D...

E, K, for example, conjugated linoleic acid.

It's very good, as your point, as a moisturizer, the trans-epidermal water loss, very good barrier.

Having said that, if you are a tall spot prone, pimple prone, it's comedogenic, so it's going to block your pores.

I would not use it on oily skin.