The ultimate skincare routine for your 40's

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When you reach your 40's, you should know one or two about skin care. If you are a beauty connoisseur, you have discovered retinol in the 20's and serum in the 30's. But now it's time to play your game in all areas. In your 40's, your skin cell turnover rate has been halved since the 20th century, which means wrinkles have begun to fall in and your skin is probably a bit less brilliant.

Hormonal changes are also common because your levels of estrogen begin to decrease, affecting the function of fibroblasts, which produce elastin and collagen, as well as melanocytes that hold the skin firm, even and tinted. Consequently, your skin becomes less smooth and can start slowly, and as it produces less oil it can become drier. Therefore, it is important to have a thorough regimen to keep the skin hydrated and fed with as many nutrients as possible.

We spoke with two Board Certified Dermatologists: Dr. Jessica Wu M.D, L.A-based dermatologist, founder of Jessica Wu Cosmeceuticals and author of Feed your face: Younger, smoother skin and a beautiful body for 28 delicious days, and Dr. Timm Golueke, Founder of Dr. Golüke clinic in Munich, and patented herbal skin care Royal Fern, to get the ultimate skin care system for the 40's. Here comes…

The ultimate skincare routine for your 40's:

Step 1. Clean

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The beginning of a large skin care regime begins with double cleaning – our fave K-Beauty ritual, where you first clean with a cleaning oil, followed by a milk, foam or water-based detergent. By cleaning twice, you will ensure that all dirt, bacteria and oil are removed from the skin. Because your skin now produces much less oil, you can actually clean twice with hydrating cleaning oils. Alternatively, Dr Timm Golueke recommends, "A cleansing balsam, because it does not remove your skin from its natural oils." Just make sure you are very careful when cleaning – do not pull your skin instead. Gently massage the oil in a foam as this will help stimulate collagen while soft fluid movements upward and outward help to increase lymphatic drainage.

Our go-to products: We love DHC Deep Cleansing Oil, $ 28, which is enriched with vitamin E and olive oil, so it's superhydrating. Another favorite of us is Tatcha Pure One Step Camellia Cleansing Oil, $ 46, which also has vitamin E, plus vitamin A to increase radiation and fight free radicals that cause premature aging. We then follow Tatcha Deep Exfoliating Cleanser, $ 38, as it encourages skin cells renewal, which naturally slows down with age.

Step 2. Ton

In the 40's, you want to use a toner that hydrates and balances your skin, so look for tones infused with rich moisturizing ingredients like natural botanicals and peptides. Peptides are great for aging skin because they consist of chains of amino acids that can help with cell renewal and repair of tissues.

Our go-to products: We love Pixi Petra Glow Tonic, $ 29 because it is infused with soothing hydrating ingredients like Aloe Vera and Ginseng, and it also contains 5% glycolic acid, which helps to tighten and tighten the pores. The Terry Cellularose Hydra Toner, $ 65, is also excellent for mature skin because it is extremely moisturizing.

Step 3. Exfoliate

Exfoliation is an important step in all skin care systems, but it is especially important for mature skin as it contributes to increased skin renewal. Using a mild chemical exfoliator twice a week with AHA as moisturizing lactic acid increases cell turnover and your glow. Repeated exfoliation can also help reduce the appearance of sun spots and stains, which usually occur due to sun exposure and hormonal changes. As we said peeling = important!

Our go-to products: We are currently occupied by Sunday Riley Good Genes All-In-One Lactic Acid Serum, $ 105, (or check this item: Inkey List's Lactic Acid Serum, $ 11), although we also love ALPHA-H Micro Cleanse Super Scrub, $ 46, infused with soothing ingredients like cucumber and peppermint.

Step 4. Antioxidant serum

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If you have not already invested in a serum, it's time. Serum has a lightweight formula with a smaller molecular structure, which means that they can penetrate further and repair and hydrate the skin at a much deeper level. Both Dr. Jessica Wu and Timm Goueleke recommend serum containing antioxidants, "Vitamin C and E, which will brighten and improve skin tone and leave it with radiant glow." A peptide and growth factor-based serum is also ideal for mature skin that peptides consist of amino acids, which helps to rebuild skin's epidermis and also stimulate collagen.

Our go-to products: The Drunk Elephant C Company Dag Serum, $ 67, is definitely our product at the moment: it is filled with radiation-stimulating antioxidants and fruit enzymes that leave your skin glowing AF. We also love WHB2 Power Duo Face Serum, $ 145, a two-phase serum containing probiotics, bioactive agents, niacinamide and tripeptides to improve skin structure, rebuild skin's epidermis.

Step 5. Use a brightener (daytime)

Dr. Timm Goueleke explains that he often sees "Patients who experience hyperpigmentation in the 40's," which is an inconsistency in color, resulting in dark spots and areas with uneven skin tones. To fight hyperpigmentation, you can use a brilliant ingredient, such as vitamin C vitamin (see our guide to the treatment of hyperpigmentation here). We like to use vitamin C in the morning to fight contaminants and protect our skin during the day and then use retinol in the evening.

Our go-to products: Clean skin care Ready Steady Glow Daily AHA Tonic, $ 32, is a really effective treatment for uneven tons because lactic acid and azelaic acid precursors are usually only available on prescription. Another good product for combating hyperpigmentation is Dennis Gross Alpha Beta Extra Strength Daily Peel, $ 88, containing salicylic acid and glycolic acid to exfoliate the skin and increase skin cell renewal. Although the skin can be quite dried, make sure you bring a rich moisturizer and facial oil to rehydrate the skin.

Step 5. Retinol (night)

"In your 40's, your skin begins to thinner from a loss of collagen, leading to fine lines and smiley walls. That's why you need to increase your skin's natural collagen using a retinoid. Start with an over-the-counter strength if you are new to retinol, and work up to a prescription strength one that is tolerated. Ask your dermatologist about Renova, a prescription retinoid that is also extremely moisturizing, says Dr. Jessica Wu. You should also use retinol on your neck and décolletage because these Areas show early signs of aging. You should only use retinol in your night routine, after your tone but before your moisturizer.

Our go-to products: We love Inkey List's Retinol, $ 13, which is a very strong over-the-counter serum that has 1% retinol and 0.5 granive retinoid (read our entire review here). Kate Somerville DermalQuench Fluid Lift Retinol Advanced Resurfacing Treatment, $ 98, is also amazing – The formula contains both collagen-increasing retinol, as well as natural botanicals that help your skin maintain that glow.

Step 6. Eye cream

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Your eyes are one of the first places to show signs of aging, because the skin around the eye is very sensitive so you should use eye cream day and night. Look for a formula that has antioxidants and retinol, as they will provide the best results. Hydrolyzed collagen also helps smoothly and strengthens the skin around the eye. Dr Timm Goueleke recommends that you seek an eye cream containing "Vitamin C, green tea and chamomile because these are good for puffiness and reduce dark circles."

Our go-to products: Dr. Dennis Gross Ferulic + Retinol Eye Cream, $ 95, has ferulic, which improves retinol as well as the properties of other antioxidants and vitamins in the formula. If you do not like splurging, the Roc Retinol Correxion Sensitive Eye Cream, $ 22.99, is a good dupe!

Step 7. Moistar

Now you're probably a moisturizing pro, and you know you have to use it both morning and night. But you must also make sure it's the right formula, enriched with anti-aging ingredients. Dr. Timm Gouleke says that "Look for niacinamide and hyaluronic acid for lightening and moisturizing."

Our go-to products: The usual natural moisturizing factors + HA, $ 10, have both niacinamide and hyaluronic acid, making it a great beauty! We also recommend Kiehl Rosa Arctica, SEK 60, infused with the rare flower; pink arctica, also known as the resurrection flower because of its anti-aging abilities.

Step 8. Facial oil (night)

In your 40's, your skin care is about hydration and locking in as much moisture as possible. Adding a facial oil is a must. Oils are lipophilic, which means they have a smaller molecular structure so that they can penetrate further into your dermis so that the skin can maintain hydration at a much deeper level. They will also repair and protect the skin's barrier while maintaining the skin. Additionally, because you use a lot of anti-aging ingredients like retinol and AHA, which can be quite drying, an oil will balance the hydration.

Our go-to products: Look for some natural essential oils like plum oil (our new fave oil!), Passion fruit or African marula oils in your local health store. Although the Clean Skincare Rose O12 Moisture Defense Oil, $ 80, is one of our all-time fave beauty products, we never travel without it!

10. Sleepmask (night only)

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During the night, our skin loses most moisture, why Timm Goueleke recommends "Contains a hydrating mask once or twice a week". Specifically, we would suggest using a sleeping mask because they create a protection layer, enabling active ingredients to penetrate while you get your beauty sleep.

Our go-to products: We love K-Beauty, Laneige Water Sleeping Mask, $ 25, which makes the skin feel silky (it's not a sheetmask, more like an intense moisturizer). We also like Origins Drink Up Intensive, $ 26, which contains moisturizing botanicals, including apricot kernel oil and mango butter – it also smells good!

Treatments you can also consider:

Laser: The Isolaz laser is an effective treatment if you are still facing hormonal outbreaks, as it can penetrate and clear deep into your pores and improve the skin's structure. Similarly, if you have hyperpigmentation, dark spots or uneven tons, consider Fraxel 1927 Laser as it can help reduce sun damage, which can also reduce the risk of skin cancer. The fractional CO2 lasers also help rejuvenate the skin while radio frequency units help tone and tighten the skin.

One month scale: A month scale is a good idea as it will encourage skin cell renewal to lighten your skin and gradually fade hyperpigmentation from acne.

Botox: If you're always wondering about Botox (find out more here), be sure to discuss your options with an expert. Botox can be very discreet and can help prevent existing or future lines from being deepened.

fillers: If you're thinking about filler, be sure to check out New York's leading dermatologist Dr Doris Days's Guide on How to Use Fillers and Injectable Substances for the Most Natural Look Here.

Let us know if there are other skin problems or problems that you want us to ask the experts in the comments below!