Her latest project is the launch of e11even (e11evenfragrance.com), a unisex fragrance she developed with her makeup artist friend Amanda Grossman. Deeley points out that the essential oil blend has been created entirely sustainably – demonstrating that while leafy north London is her home for now, her time in the US has given her a more considered approach to wellness. .

“In LA, they were pretty ahead of the curve in terms of beauty products, supplements, and procedures and there was a lot to be had from that,” she explains.

Here, Deeley shares some of her beauty recommendations.

No make-up days, that’s okay

“In Los Angeles, you see women in the Polo Lounge at the Beverly Hills Hotel with no makeup on. Nobody cares about that in LA – it’s such a different mindset than London. Plus, the sun shines most of the time in LA, so you can get away with wearing less in general.

“Now, unless I’m working, I don’t wear a lot of makeup, just a light face oil like the Decléor Green Mandarin Glow Aromessence Serum, (£55, decleor.co.uk), which gives my skin a beautiful glow.I have been a fan of the brand for over 20 years.I also love the botanical, vegetal and floral scent of the products.

“During the school run, I could use Sunkissed Green Mandarin cream and put on a baseball cap and I’m good to go. I also pretend to tan every few days with Amanda Harrington’s collection.

Wear sunscreen, religiously

“LA’s climate is so different from London’s – LA is practically a desert – so my skin was much drier there and I had to take skincare more seriously. In addition to smothering my face in rich cream at night (I like to look like a greasy flea at night), I used sunscreen daily.

“When I was younger, everyone would slather themselves in baby oil or ruffle their hair with Sun In – the arrogance of youth. I don’t know if that’s partly the lifestyle from Los Angeles or the fact that I was getting older and starting to notice the signs of aging more, but now I wear sunscreen every day. I like Anthelios from La Roche-Posay, (£18, lookfantastic.com ) because it is really light and sinks quickly.

Juice is not just a fad

“I have become very good at taking my vitamins! I use Viviscal (£29.99, Holland & Barrett) to improve the condition of my hair, I take vitamin D daily and also take a multivitamin. I also do something very LA: I drink celery juice. It is supposed to have good antioxidants.

“I also now do my own anti-inflammatory juice injections. Voila: choose pineapple or orange as the base, then add fresh turmeric, a little olive oil, black pepper and lemon juice. That’s it.

“I caught Covid in January 2021 and my joints are really hurting as a result. I thought I had arthritis. It hasn’t completely gone away yet, but I think the juices and supplements have helped. However, when it comes to food, my general rule is to choose what my boys eat.

Check if you have “a face for Botox”

“I’ve had Botox before, but I’m not the person who will schedule it. I never had a filler. I don’t want to change my face – and I’ve gotten to a point where I really like my face – but sometimes I look in the mirror and I’m like, ‘Oh, I’m really tired’, because I’m a very poor sleeper, and that may be the sign.

“However, when I was in Los Angeles, I used to see the famous dermatologist Dr. Harold Lancer to check moles and for some skin treatments. I remember asking him once, ‘How can I reach my potential? max?”, and he told me that I don’t have the face to do things and that would look terrible on me and age me. So now I might have some Botox on the jaw because I squeeze, but it’s not something I’m married to.

“And now I see an amazing doctor in the UK, Dr Frances Prenna Jones, who will botox my shoulders while I’m stressed out there: the toxin helps relax them.”

Truly anti-aging facials

“Before LA I wouldn’t have regular facials, but now I do. In LA I would book for LED light therapy and oxygen facials, especially if I had something big In the UK I love seeing Decleor facialist Katharine Mackenzie Paterson At home I use an LED face mask when I can like the CurrentBody Skin LED light therapy mask (£279 , currentbody.com).

“However, usually with my beauty routine, I’m all for double duty: quick multi-tasking, like scrubbing my face in the shower or getting a tan while I have zooms at home. I even have my brush in the shower to be very quick before someone shouts “Mom!”

“If I have time for ‘self-care’, heaven for me is pouring Epsom salts in a bath with lavender oil and listening to an audiobook. But I’m in bed the most nights at 9 p.m. because I’m exhausted and I don’t know if the boys will wake up during the night.

Stick to the hairstyle that suits you

“My hair color and texture changed after I had my boys. My colorist in LA was using the exact same color as usual and suddenly the tone was much warmer in my hair after the kids. I’m cooling it so regularly with Josh Wood’s Icy Blonde Gloss (£19, joshwoodcolour.com).

“As far as styling, I sometimes play with bangs, but I have a cow lick and it just doesn’t suit me at all. And I know now that I can’t make it short either: if I cut it, it’ll go like a giant mushroom because it’s thick and I’ll have to do a million things to style it. It would drive me up the wall.

Make exercise part of your daily routine

“It’s much easier to be healthy in Los Angeles. I would get up in the morning, have a coffee, put on my leggings and sneakers, take the dog to the canyon and hike back up. It was a mile and a half and a 45 degree incline. The weather was still nice, so even with yoga – which I practiced three times a week – I could just go out into the garden and roll out my mat. Back in London, it doesn’t work like that. Although I’ve been taking yoga classes online, I haven’t quite found my groove yet, but I’m not going to blame myself.

And something I’ve been doing since I’ve been back in London…

“I’m 45 and I’ve just started doing my eyebrows. It’s one of the things I’ve done that makes me look a little younger, because my eyebrows are now a little more fashionable! I had amazing eyebrows when I was 14, then of course the 90s came along and I ripped them into oblivion and they grew back a little, but not as much.

“I went to a salon in St John’s Wood and had my brows ‘laminated’ which is supposed to make them look neater and fuller. Although when the therapist brushed it I looked like a geography teacher – you know when the hair is that long you can pick up the BBC World Service. But then she did the layering treatment, which softens the hair and sets it in place, and she applied some dye.

“It’s the type of treatment that allows you to wear less makeup and quickly look better dressed. That’s all I am.

Head toward instagram.co.uk/telegraphstella tomorrow to watch Cat’s morning beauty routine

have the look