DEHYDRATED SKIN? THE SIX INGREDIENTS YOU NEED TO KNOW ABOUT

One thing we know for sure is that dry, dehydrated skin is never a good thing. But with the right ingredients, it’s 100 per cent possible to transform a tight, flaky complexion into one that’s plump and bouncy.  

First, let’s clarify what we’re talking about: dry skin is essentially a chronic condition and occurs when the skin lacks oil. Dehydration is generally a more temporary concern that comes about when the skin is low on water.  

Of course, these two issues don’t always exist in tandem, but now the cooler weather has well and truly settled in, we thought it would be helpful to cover all bases. Below, we discuss six of our favourite ingredients to improve dry, dehydrated, lacklustre skin on a biological level. From humble Hyaluronic Acid to the lesser known (but much-loved) Trehalose, keep reading for our top hydrators, and the Skinstitut formulas to match.  

Niacinamide 

Category: Vitamin, antioxidant 

Niacinamide, otherwise known as the physiologically active form of Vitamin B3 or Nicotinamide, is a popular and deserving ingredient that offers a range of unique skin benefits. 

One of the most notable features of Niacinamide is its antioxidant properties, which help to repair visible damage from UV light, while protecting against other environmental stressors, including pollutants.  

Niacinamide also works to fortify our skin’s surface against moisture loss and dehydration by boosting the production of ceramides – and thus our barrier integrity. So, while it doesn’t directly hydrate the skin, it does reduce the trans-epidermal water loss that can occur when the skin barrier is impaired. Smart!  

As a bonus, Niacinamide also refines pore size, unifies skin tone, regulates sebum production, and assists with the reduction of post-acne marking. No wonder it has achieved icon-like status in the skincare world.  

Try: Expert Restore Niacinamide Repleneshing Cream

Try: Multi-Active Mist  

Hyaluronic Acid 

Category: Humectant  

It’s likely you’ve heard of Hyaluronic Acid before thanks to its ability to hydrate the skin. A popular humectant, Hyaluronic Acid is naturally occurring and can hold up to 1000 times its own weight in water, which means it’s useful when it comes to increasing the moisture content in skin.  

Hyaluronic Acid works on the superficial layers of the epidermis, which is why you might notice an immediate plumping effect straight after application. Our hot tip? Apply to damp skin to ensure the skin absorbs the moisture effectively.  

When using Hyaluronic Acid or any other humectant ingredient, it’s also essential to layer an occlusive compound like Shea Butter on top to seal in the moisture that is captured. Check out Repair Balm, or Moisture Defence Ultra Dry 

Try: Multi-Active Mist  

Try: Moisture Defence Normal Skin 

Lactic Acid 

Category: Alpha-Hydroxy Acid 

Lactic Acid is an Alpha-Hydroxy Acid (AHA) that is traditionally extracted from milk, however it can also be produced synthetically, which is the case for most topical formulas.  

In a nutshell, Lactic Acid exfoliates the skin's surface, dissolving the glue that holds dull, expired cells together. It also boasts hydrating properties and can help to stimulate the production of natural moisturising factors found in our skin.  

Because it’s a larger molecule size than other AHAs (such as Glycolic Acid), it’s gentle enough for use on sensitive skin, too.  

Try: L-Lactic Cleanser 

Glycerin  

Category: Humectant  

Glycerin might not get as much airtime as Hyaluronic Acid, but it’s another fantastic humectant that works incredibly well to rehydrate and plump the skin.   

While Hyaluronic Acid attracts moisture to the skin, Glycerin has a slightly smaller molecular structure, so is able to penetrate the epidermis more effectively and is known to pull water from within the skin. It is excellent when used in conjunction with Hyaluronic Acid or other humectants for long-lasting hydration and a bouncy skin texture.  

Try: Multi-Active Mist  

Try: Moisture Defence Normal Skin 

Try: Hydrating Mask 

Try: Ultra-Firming Eye & Neck Cream 

Trehalose 

Category: Sugar, antioxidant, humectant  

Trehalose is actually a sugar, lauded for its moisturising properties and antioxidant benefits. It’s commonly found in plants, where it’s thought to help with cellular repair after exposure to extreme temperatures.  

As for skin benefits, Trehalose works to prevent oxidative damage, as well as stimulate our natural moisturising factors. It also draws water into our skin, supporting healthy hydration levels.  

Try: Repair Balm 

Panthenol  

Category: Vitamin, humectant  

Panthenol, also known as Provitamin B5, also falls into the humectant category because of its ability to attract and retain water within our complexion. When applied, it converts to pantothenic acid, a naturally occurring water-soluble molecule that works immediately to improve hydration levels.  

It’s also thought to be a great soother, making it useful for red, sensitised or easily irritated skin types.  

Try: L-Lactic Cleanser 

Try: Hydrating Mask 

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07/09/2025
Sam
Australia
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ANASTASIA
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Australia
My skin is feeling fresh and less dull
Retinol Serum
01/09/2025
Lyn S.
Australia
This is a fantastic product. I have been using it for a couple of years now. It’s affordable, a bargain really! My skin is seriously sun damaged, with sola keratosis across my cheeks, that feels scaly and rough. I do have my skin checked every ) months just in case. This mask helps my skin to feel...This is a fantastic product. I have been using it for a couple of years now. It’s affordable, a bargain really! My skin is seriously sun damaged, with sola keratosis across my cheeks, that feels scaly and rough. I do have my skin checked every ) months just in case. This mask helps my skin to feel more comfortable, it gently exfoliates leaving my skin feeling a lot smoother. I would be lost without it.
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01/09/2025
Machallie
Twice daily. Perfect product
L-Lactic Cleanser
01/09/2025
Machallie
Australia
Staple in my skin regime
Rejuvenate 15 Serum
01/09/2025
Machallie
Australia
Worth the investment.
Expert Restore Niacinamide Replenishing Cream
26/08/2025
Tammy’s
Australia
Love it, smooth none greasy
Age Defence SPF 50+
21/08/2025
Elisabeth
Australia
Great night cream and nice smells. I love this product and this is my second jar. makes my skin feel smooth and firm.
Expert Restore Niacinamide Replenishing Cream
21/08/2025
Anne
United States
Love this product
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18/08/2025
Gaylene
United States
Love it all, skin is so much brighter with the mask and the cleansing gel is so great for my mature skin
Multi-Active Mist
17/08/2025
Elisha
United Kingdom
I never realised how good this powder was until I stopped using it Finally got a new one day and along with the serum my face felt renewed
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17/08/2025
Elisha
United Kingdom
I wasn’t able to book in a hydra facial at short notice so decided to buy additional items from this range First time using this product and it had sold out in the Stratford store so I purchased the Active Icons Renew & Glow just which had a 50ml tube inside I wasn’t disappointed and will...I wasn’t able to book in a hydra facial at short notice so decided to buy additional items from this range First time using this product and it had sold out in the Stratford store so I purchased the Active Icons Renew & Glow just which had a 50ml tube inside I wasn’t disappointed and will definitely purchase again
Glycolic Scrub 14%
17/08/2025
Elisha
United Kingdom
This is by far one of the best face mists that I have used Smells nice and face feels refreshed
Multi-Active Mist
14/08/2025
Jan
United States
Great skin cleanser !!
Glycolic Scrub 14%
14/08/2025
Jan
Australia
Best skin care for mature skin
Expert Restore Niacinamide Replenishing Cream
08/08/2025
Vanessa P.
Australia
I love the way this makes my skin feel, I use morning and night before I moisturise.
1% Hyaluronic Complex Serum
02/08/2025
Nafeesah M.
Australia
Helps with my hormonal acne. I'm not used to acne so we I broke out heavily postpartum, my naturopath recommended this product. My skin has greatly improved since. I used it on my back and face.
Glycolic Scrub 14%
01/08/2025
Mrs K.
Australia
Beautiful moisturiser, I have used it for years and always love how it makes my skin feel moist and plump.
Moisture Defence – Normal Skin
01/08/2025
Debby N.
Australia
This is my daily moisturising product. My skin is dry and very sensitive and the repair balm is so calming and soothing when applied in my daily routine.
Repair Balm
01/08/2025
Meg P.
Australia
Great product. My skin feels amazing
10% Vitamin C Super Serum
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Helene M.
Australia
Amazing product! I have been using it for years & love it!
Vitamin C 100%
01/08/2025
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Its beautiful texture , sinks into your skin perfectly 💜
Moisture Defence – Ultra Dry Skin
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Cathy W.
Australia
I have used this product for a while & love it. Only product that does not effect my skin
Moisture Defence – Ultra Dry Skin
01/08/2025
Geraldine D.
Australia
I've been using all 5 of the products in the Discovery pack and I love them all. My skin has improved noticeably and I recommend to all of my friends to try them.
The Edit
16/07/2025
Cassandra
United States
Love love love this product
Hydrating Mask
13/07/2025
Chantelle K.
Australia
Been using skinstitute for years. Never let me down.
1% Hyaluronic Complex Serum
10/07/2025
emmanuella b.
Australia
Works great doesn’t feel weird on the skin and doesn’t feel greasy has helped my skin so much with hydration love it. Also doesn’t make me break out which is a huge problem I’d had with other moisturiser
Moisture Defence – Oily Skin
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