A 101 Guide to The Skin Diary

The longevity skincare brand designed by Dermatologists.

The Skin Diary is a dermatologist-founded skincare brand based in the UK. Its formulas are validated by human skin biopsy studies, a level of testing rarely seen outside prescription medicine and designed to address the structural changes that drive visible ageing: collagen loss, elastin breakdown, DNA damage and barrier decline.

What makes The Skin Diary Different?

The brand's dermatology team works with actives that are, in their own formulations, up to 80 times more potent than over-the-counter equivalents.  

There are two products designed to form a simple, complete AM and PM routine. A morning that defends against UV and environmental damage. A night that supports the skin's own repair cycle. 

Who is The Skin Diary for?

The Skin Diary suits most skin types, but it is especially matched to:

  • Skin showing the structural signs of ageing, such as fine lines and loss of firmness

  • Anyone wanting a streamlined, dermatologist-designed routine

  • Skin fatigued by too many steps, too many actives, or too many false starts

  • Menopausal and perimenopausal skin

If you are unsure whether the range is right for you, our Skin Experts can help you decide in a free consultation!

How Skin Pharmacy works with The Skin Diary

With two hero products, The Skin Diary is for those who are time poor yet demand an effective, complete routine.

Night Repair Therapy

What it is: The brand's flagship night cream. The product that built its reputation. A formulation built around peptides, a retinyl ester (a gentler member of the vitamin A family), bilberry extract, hydrolysed tomato skin and both short and long-chain hyaluronic acid. Together they support collagen and elastin production overnight, when skin is naturally in repair mode. 

Why it matters: Delivers the firming, smoothing effects associated with prescription retinoids, with a gentler tolerance profile. A considered choice for anyone who has struggled with stronger vitamin A formulas.

Age Defence Moisturising Day Cream

What it is: A single-step morning cream that moisturises, protects and corrects. Pairs encapsulated SPF50+ PA++++ broad-spectrum filters with two DNA-repair enzymes, photolyase and endonuclease which actively help correct sun-induced cellular damage, not just block it. An antioxidant complex of bilberry extract and raspberry seed oil neutralises free radicals, while squalane, glycerin and vitamin E hold in moisture. 

Why it matters: Replaces three morning steps, moisturiser, antioxidant and SPF with one. Ideal for anyone who wants streamlined mornings without compromising protection.

The Ultimate Skin Ageing Duo

What it is: Night Repair Therapy and Age Defence together is a complete AM and PM routine in two products. The perfect introduction to the brand, and the most common recommendation our Skin Experts make for skin focused on firmness, tone, and long-term ageing.

How to Use The Skin Diary

A simple AM/PM structure, based on how our experts recommend the range.

Morning

  1. Use a gentle cleanser from our curated range (speak to our expert if you need help)

  2. Apply the Age Defence Moisturising Day Cream

Evening

  1. Use a cleanser of your choice from our curated range - double cleanse if wearing SPF or makeup. 

  2. Apply the Night Repair Therapy

That is the routine.

You can layer a targeted serum underneath, e.g a vitamin C serum in the morning, hydration or pigmentation support at night, but the range is designed to stand alone for most people.

Apply Night Repair Therapy to clean, dry skin. Build tolerance gradually if your skin is sensitive or retinoid-naive: two to three nights a week for the first fortnight, increasing as your skin adjusts.

Age Defence is a one-and-done morning step. Two fingertip lengths, pressed evenly across the face, neck and décolletage.

The Skin Diary is a small range that rewards consistency. Two products, used properly, can do more than a shelf of half-finished bottles.

If you are unsure whether it is right for your skin, or how it fits alongside the brands you already use, book a complimentary consultation with one of our clinicians. We will review your skin, your goals and your current routine and advise you if The Skin Diary is the right place to begin.

 

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