Just a pervy list of the 40 top-selling products from Priceline.

You know what we like to do here at Mamamia? Eat cake at 10am. But also, have a nosy into other people's beauty routines. A peep inside their beauty bag. A pervy glance into what they buy when they're trawling through the beauty aisles.

Goodness, it's fun.

So when Priceline offered us the chance to look at their sale books from the last twelve months, obviously we had to say yes.

Here, they've shared exactly which beauty products Australian women are purchasing in stores - meaning we now know exactly what the most popular makeup products and beauty accessories are from the last year. 

Watch: Here are seven ways to improve your skin while sleeping. Post continues below.

From skincare to makeup and haircare, we've pulled together the retailer's top 40 best-selling products below so you can see what made the cut.

Best-selling skincare.

Image: Priceline/Mamamia

No surprises here, friends! The Ordinary took out the top eight of the ten spots on the skincare front - which is... slightly insane.

Offering supercharged formulas packed with potent actives, sold at affordable prices, the brand has quickly attracted a cult following. And since their launch in 2016, the buzz is still going strong. 

The product that nabbed top spot? The Ordinary Hyaluronic Acid 2% + B5. Offering intense hydration and benefits for all skin types, it's no wonder it's the brand's most-loved product. 

Joining pretty much ever product from The Ordinary, are Garnier's brightening eye masks and Spot Medic's pimple patches - which are a great alternative to tearing your face apart.

Important note: If you want to suss out which The Ordinary products you should use, check out our article here.

Here's the full list of best-selling skincare at Priceline:

1. The Ordinary Hyaluronic Acid 2% + B5, $12.90.

2. The Ordinary Niacinamide 10% + Zinc, $10.60.

3. The Ordinary Squalene Cleanser, $34.50.

4. The Ordinary Natural Moisturising Factors + HA, $9.80.

5. The Ordinary Natural Moisturising Factors CTRS + HA, $17.10.

6. The Ordinary Retinol 0.5% in Squalane, $12.20.

7. The Ordinary Caffeine Solution 5% + EGCG, $12.70.

8. The Ordinary Vitamin C Suspension 23% + HA Spheres 2%, $11.40.

9. Garnier Hydra Bomb Eye Tissue Mask with Orange Juice, $2.49.

10. Spot Medic Individual Adhesive Hydrocolloid Masks For Pimples, $9.99.

Best-selling makeup.

Image: Maybelline

On the makeup front, the viral Maybelline Sky High Mascara snapped up first AND second place (the latter is the waterproof version) - and honestly, we're not surprised. Have you tried it? There's a reason it's always sold out.

Interestingly, there was only one foundation that made the list of top-selling makeup products - Nude By Nature's Mineral Cover. This loose mineral powder foundation also happens to be the brand's number one best-seller - so that kind of makes sense!

Joining the list are some super affordable products from Essence - including a lash and brow gel, mascara and lip gloss.

Here's the full list of best-selling makeup at Priceline:

1. Maybelline New York Lash Sensational Sky High Mascara in Blackest Black, $12.99.

2. Maybelline New York Lash Sensational Sky High Waterproof Mascara in Very Black, $12.99.

3. Essence Lash and Brow Gel Mascara in Clear, $5.

4. Essence Lash Princess False Lash Effect Mascara, $7.

5. Maybelline New York Eye Studio Master Liner 24hr in Black, $9.49.

6. Nude By Nature Natural Mineral Cover in Medium, $21.47.

7. Essence Extreme Shine Volume Lip Gloss in Crystal Clear, $4.

8. Maybelline New York Hyper Sharp Wing Liquid Liner in Black, $9.49.

9. L'Oréal Paris Telescopic Mascara in Black, $29.99.

10. Maybelline New York Lash Sensational Mascara in Blackest Black, $12.49.

Best-selling haircare.

Image: Priceline

When it comes to hair, Priceline saw a rise in people purchasing nourishing masks, oils and treatments, 

Shea Moisture Coconut & Hibiscus Curl Enhancing Smoothie took out first place in the haircare sector - suggesting more and more people are embracing their natural texture and focusing on looking after the health of their hair. 

We love to see it.

You'll also notice quite a few hairsprays getting around in the top ten (yes, we're looking at you Schwarzkopf!), which may be thanks to the rise of that 'clean' beauty aesthetic you're seeing everywhere - that is, slicked back hair with zero flyaways.

Honourable mentions go to Fudge's purple shampoo - which is clearly a hit - as well as the cult Batiste Dr Shampoo (you can't beat it).

Here's the full list of best-selling haircare at Priceline:

1. Shea Moisture Coconut & Hibiscus Curl Enhancing Smoothie, $22.39.

2. Schwarzkopf Extra Care Super Styling Lacquer Maximum Hold, $49.

3. Hask Keratin Protein Smoothing Deep Conditioner Sachet, $15.99.

4. Hask Argan Oil from Morocco Intense Deep Conditioning Hair Treatment, $4.99.

5. Schwarzkopf Extra Care Strong Styling Hairspray Extra Strong, $6.49.

6. Fudge Clean Blonde Violet Toning Shampoo, $14.39.

7. Hask Argan Oil From Morocco Healing Shine Oil Hair Treatment, $4.99.

8. Schwarzkopf Extra Care Strong Styling Hairspray Extra Strong Hold Better, $10.99.

9. The Ordinary Multi Peptide Hair Serum for Hair Density, $30.

10. Batiste Eden Bloom Dry Shampoo, $17.

Best-selling fragrance.

Image: Priceline

Before every celebrity, ever, released a skincare brand - celebrities and fragrances went hand-in-hand. Everyone had one. And it doesn't look our love for the celeb/fragrance duo ever faltered.

Just take a look at Priceline's top selling fragrances - there's a whopping six celebrity fragrances in there, with Ariana Grande taking out four, and Britney Spears taking out two.

Amongst the celebrity sniffs, some bougie scents from designer brands such as Jimmy Choo, Estee Lauder and Guess also made the cut. 

Here's the full list of best-selling fragrances at Priceline.

1. Ariana Grande Ari EDP, 100ml $55.

2. Ariana Grande Sweet Like Candy EDP 100ml, $55.

3. Ariana Grande Cloud EDP 30ml, $39.

4. Jimmy Choo Blossom EDP 40ml, $41.

5. Britney Spears Fantasy EDP Wand 15ml, $10.99

6. Estee Lauder Youth Dew EDP 67ml, $41.

7. Jimmy Choo Blossom EDP 40ml, $51.

8. Ariana Grande Ari EDP 50ml, $39.

9. Britney Spears Midnight Fantasy Fine Fragrance Mist, $10.99.

10. Guess Bella Vita EDP 100ml, $49.

Have you tried any of the above products before? What are your faves? Post continues below.

Feature image: Instagram; @pricelineau; @deciem