It's so deliciously pervy finding out what other people use on their faces. C'mon, we know you love it.

Having a nosey into someone else's cabinet gives you the chance to meet new skincare heroes you never even knew existed (or the ones you were just too shy to say 'hello' to) and discover what other folk (besides your sister, mum and bestie) do to keep their skin happy and healthy.

Watch: Wanna take a trip down memory lane with Dr Pimple Popper? Here are some of her favourite squeezes. Post continues below.

Because skincare is confusing. There's so many products, so many steps, so many potential skin issues and so many long science-y words. Sometimes you just wanna know what's good.

And while we love knowing what products make it into celebrity skincare routines - who better to ask than the pros?

After all, it's top dermatologists who tell A-listers what to use on their skin in the first place. With years of professional experience, these guys have access to anything and everything, and know first-hand what works and what's all just a load of fancy marketing fluff and fairy dust.

Listen to this episode of You Beauty, where Leigh Campbell asks dermatologist and skin expert, Dr. Shaymalar Gunatheesan, all the skin-related questions you needed answered, like, yesterday. Post continues below.

So, we asked three dermatologists to tell us whattheyuse in their skincare routines. The stuff that's actually sitting in their bathroom cupboards and is going on their skin daily.

Check out their favourite skincare products below.

Dr Cara McDonald from Complete Skin Specialists.

SkinCeuticals CE Ferulic, $218.

"Scientifically proven antioxidant protection with vitamin C, vitamin E and ferulic acid. This gives potent protection against free radicals and oxidative damage in the skin as well as additional protection against the harm UV can cause. I love the texture of this serum and it doesn’t cause any irritation to my skin, which is quite sensitive and doesn’t necessarily tolerate all vitamin C products."

La Roche Posay Anthelios Invisible Fluid SPF 50+, $22.39.

"I am religious with my sun protection and apply this every single day, 365 days a year. I love this product because it is completely weightless on the skin and sits beautifully with or without makeup. It is fragrance-free and perfect for sensitive skin whilst providing the best UV protection on the market."

SkinCeuticals Retinol 0.3, $67.

"Retinols (vitamin A) are one of my favourite anti-ageing ingredients due to their scientifically proven actions on the skin. These effects include improved renewal of the skin cells, increased production of collagen, and a decrease in pigmentation. This results in smoother and more luminous skin, decreased congestion and acne, decreased fine lines and wrinkles and decreased pigmentation. Retinols are universally irritating, so it is important to find a formulation and concentration right for each person. I like the SkinCeuticals range because you can start with a relatively low strength 0.3% and increase if tolerated."

Rationale #1 The Mask, $202.

"Another favourite ingredient of mine is niacinamide (vitamin B3). Niacinamide is highly beneficial in the skin, with a wide range of actions. Most importantly it calms down inflammation in the skin, which is damaging and accelerates ageing. Niacinamide can also improve skin hydration, reduce pigmentation and protect against sun damage. I love using this mask with concentrated niacinamide and often mix it with my night cream if I don’t have the time to do a standalone mask treatment."

Dr Katherine Armour from Bespoke Skin Technology.