The Oscar winner looks stunning as the cover star for the new issue of Red magazine, where she opens up about dealing with strangers' opinions and her hope to move back to the UK.
"This is the thing, it's like the older I get I realise it doesn't matter what people who don't know you think. It doesn't matter. You're wasting your energy," she says.
"It's like, if your partner comes to you – or your best friend – and says, 'Listen, I want to talk about something you did that hurt me, or I think you could improve', sit down and listen to what they have to say. But some friend of so-and–sos – it's like, who gives a s**t?"
The refreshingly honest actress adds: "And for me, obviously, I have it on a very large, global scale. I don't have it in the village gossip way; but it's the same thing. That's why I really don't read anything. Because if it's important, it filters down to me."
Gwyneth has enjoyed a hugely successful Hollywood career for years but it's also her personal life that hits the headlines because of her high profile marriage to Coldplay star Chris Martin.
They have two children together, Apple and Moses, and have been splitting their time between her native America and his home country of England.
While many people dream of leaving the cold of the UK for the sunshine of California (especially in the winter months), Gwyneth tells Red she's hoping to relocate back to England in the next few years.
"I don't want [Apple and Moses] to be teenagers in LA," she admits. "No way. I'm looking at this like two years, three years tops, then we will go back. It's part of my parenting philosophy that children should get the opportunity to reinvent themselves at a few points in their childhood to see where their strengths and weaknesses lie and to experience living in different cultures… It's an experiment. We'll see.
"I love London and it's my favourite city in the world. I love my house and my life there, but you know, in California I have all the girls I grew up with, I have my family, I have my actress friends. I've got a real posse. I don't know, there was something about turning 40 and feeling like I needed to go home for a year or so."
"I always go totally overboard with food, presents, decorations, everything… Christmas Eve is the rehearsal dinner. I usually make something very different, like I'll do an Italian Christmas Eve with seven fishes and sometimes a custom from another country. We dress up! We don't go crazy, but we look nice. We spend all day in pyjamas having bagels and coffee and sitting around and then I cook and I change. It's fun."
With a gorgeous family, happy marriage and enormously successful career, it really does seem that Gwyneth has it all… but will she be adding to her brood in the future?
"I don't know," she says. "My brother just had a baby, so it's quelled [feeling broody].
"I sort of feel like I have that baby now. She's so heaven, oh my God. And I'm feeling at such a comfortable point in my life right now, like I'm starting another chapter. Like today I was sitting in the bathroom with Moses (her seven-year-old son) and I was like, "Oh my God, I'm so glad he can wipe his own ass." I'm so glad I don't have to do that any more. I don't know if I could go all the way back."
The full interview appears in the December issue of Red (on sale 6th November) guest-edited by Gwyneth Paltrow and her team at goop.com. Also available in digital edition on Apple Newsstand.
For exclusive behind-the-scenes footage of Gwyneth's cover shoot, please go to www.redonline.co.uk/gwyneth