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The Ordinary’s anti-ageing serum delivered ‘impressive results in very little time’

The formula’s hero ingredient is set to make a big buzz in the skincare world in 2025

Sabine Wiesel
Wednesday 05 March 2025 09:05 GMT
I'm an experienced beauty editor in my 40s with typical signs of skin ageing including pigmentation, fine lines and a loss of firmness
I'm an experienced beauty editor in my 40s with typical signs of skin ageing including pigmentation, fine lines and a loss of firmness (iStock/The Ordinary)

The Ordinary needs no introduction. It is renowned for creating affordable yet innovative skincare products that work. One of its latest launches is no exception: a growth factor face serum that addresses multiple visible signs of ageing at a fraction of its competitors’ prices. But does it deliver? I put it to the test before it launched.

Growth factors are fast becoming the next buzz-worthy skincare ingredient. They are proteins that naturally occur in our skin cells – simply put, they act as messengers to various mechanisms in the skin signalling it to repair and rejuvenate. They do so by stimulating skin cell turnover and the production of collagen and elastin – the fundamentals of keeping skin smooth and firm. 

With age, growth factors deplete so the skin is less able to repair itself from environmental damage like UV light and pollution, leading to premature signs of ageing. By replenishing these growth factors, old skin cells start acting like younger skin cells again. 

The science isn’t new – growth factors were first discovered by scientists in the 1950s who went on to win a Noble Prize for their work, and luxury skincare brands started infusing their formulas with the regenerating ingredient in the 1990s. But what is new, is having access to this advanced science for the first time at a bargain price. 

Typically, it's only high-end and hugely expensive skincare brands that carry growth factor skincare, excluding The Inkey List’s offering, although it’s hard to compare when it’s not as highly concentrated. But The Ordinary’s new serum comes with a bargain price tag of £13.50 – so I wanted to see how it performed.

How I tested

I assessed any changes to my skin
I assessed any changes to my skin (Sabine Wiesel)

I am an experienced beauty editor in my 40s with typical signs of skin ageing including pigmentation, fine lines and a loss of firmness. I tested the product for three weeks (both in my morning and evening skincare routines) each time under the same daily moisturiser.

Why you can trust us

Sabine Wiesel is a beauty journalist who specialises in anti-ageing and mature skin and beauty products. Having reviewed everything from the best neck creams to the retinol eye creams, she is well-versed in finding the best value products that actually make an impact on fine lines and pigmentation.

The Ordinary growth factors 15% serum

The ordinary growth serum review indybest
  • Size: 30ml
  • Key ingredient: Three growth factors (EGF, IGF and TGF)
  • Why we love it
    • Absorbs in seconds
    • Heals skin damage
    • Smooths texture, lines, and wrinkles
    • Firms skin with time
    • Great alternative to retinol serum
  • Take note
    • Watery texture makes it easy to use too much

The formula

While you may have tried, seen, or heard about epidermal growth factor (EGF) serums, this new formula goes beyond those containing this one type of growth factor. Instead, it’s infused with a high concentration of not just one but three plant-based growth factors (adding IGF and TGF growth factors if you’re into the science).

The brand says this is to offer short, medium, and long-term effects including targeting rough skin texture and regenerating the look of ageing skin by reducing fine lines and wrinkles and firming the face and neck for a lifted appearance.

The application

Just like many of The Ordinary’s bestselling products, the new growth factor 15 per cent solution comes in the brand’s signature apothecary-like brown bottle with an easy-to-use pipette. I found it fuss-free as it absorbs in seconds – I used it after cleansing and before applying moisturizer in both morning and evening regimes.

It’s recommended to apply a few drops to the face and neck, but for all-over coverage, I did think four or five seemed more appropriate. Don’t be tempted, like I was on occasion, to use any more, as it’s a water-based serum it is easy to overuse but do so and you’ll be restocking faster than you need to.

You also have to pay attention to what you’re applying with it. The brand warns not to use the same regimen as exfoliating acids and vitamin C products as these can hinder growth factors effectiveness.

The result

As with other skin-rejuvenating formulas, you do have to play the long game with growth factors to see results. So, I was pleasantly surprised that after just three weeks of use, my dull dry skin did look more radiant (a hard thing to pull off in the winter months) and already felt much smoother.

These are impressive results in very little time. It must be its exclusive cocktail of growth factors working its magic as promised. So, I’m going to continue both the AM/PM use, to see how my skin looks and feels with continued use – I’ll keep you posted.

What’s more, this formula makes a great alternative to a retinol serum. There are no side effects to be wary of, so if you’re on the sensitive side or haven’t got on with retinoids in the past do try this as a substitute.

There is only one downside to the formula and that is you get little hydration. So, if you have skin on the dry side, like me, that benefits from an extra layer of hyaluronic acid then teaming it with the much-loved hyaluronic acid 2% + B5 with ceramides would be the way to go.

  1.  £13 from Boots.com
Prices may vary
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The verdict: The Ordinary GF 15% solution

The Ordinary growth factors 15% serum is a gentle and effective alternative to retinol, I’m predicting growth factors to be one of the biggest skincare trends in 2025. The science may not be new but applying them to skincare that’s both accessible and effective is.

Previously, many of us have been priced out of the advanced science formulations with most growth factor serums costing through the roof but the original affordable and effective ingredient-led skincare brand has done it again: making high-tech skincare available for all.

I’m impressed with its smoothing abilities after just three weeks but can’t wait to see how it fares with firming and lifting over time.

Buy now

For more skincare must-haves, check out our expert’s top picks for the best Korean skincare products

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