Vitamin A has been used in dermatology and skincare for decades and remains one of the most extensively researched ingredients for improving the appearance and quality of the skin.
Yet the way we use vitamin A has changed considerably.
For many years, the conversation around cosmetic retinoids largely centred around one question:
“How strong is the retinol?”
Today, we know there is much more to consider.
Different forms of vitamin A behave differently within the skin. How a retinoid is formulated, stabilised and delivered – and importantly, how well your skin can tolerate it – can be just as important as the percentage stated on the packaging.
But before we look at how vitamin A skincare has evolved, there is a more important question:
Why Do We Recommend Vitamin A for the Skin?
Vitamin A plays an important role in normal skin function, and topical vitamin A derivatives – collectively known as retinoids – have become some of the most established ingredients used in evidence-led skincare.
When appropriately selected and used consistently, vitamin A skincare can help to:
- support healthy skin cell renewal
- improve the appearance of fine lines and wrinkles
- support collagen and overall skin quality
- improve uneven skin tone and areas of pigmentation
- refine rough or uneven skin texture
- improve the appearance of blemish-prone and congested skin
- address some of the visible effects of accumulated sun and environmental exposure
This is why vitamin A remains a cornerstone of many professional skincare programmes.
However, not every skin needs the same form or strength of vitamin A.
Your skin condition, sensitivity, previous retinoid use, pigmentation, breakouts, age and the health of your skin barrier can all influence which approach may be appropriate.
And that is where the story of vitamin A becomes interesting.
Where the Retinoid Story Began
The history of modern retinoid skincare begins with tretinoin, or retinoic acid.
Tretinoin was initially established as a prescription treatment for acne. Clinicians subsequently observed that patients using it were also experiencing improvements in the overall appearance and quality of their skin.
Researchers went on to investigate tretinoin for sun-damaged and prematurely aged skin – known as photoaging. Clinical research demonstrated improvements in several features associated with photoaging, with measurable changes within the skin including increased collagen production and more even distribution of pigment.
Tretinoin subsequently became an important benchmark against which other topical retinoids were measured.
There was, however, a significant disadvantage- irritation. Redness, dryness, peeling and discomfort can make tretinoin difficult for some people to tolerate consistently.
And this led skincare scientists to an important question:
Could we achieve many of the benefits associated with retinoic acid using other forms of vitamin A that were gentler and easier for the skin to tolerate?
Where Does Prescription Tretinoin Fit Today?
Tretinoin remains an important prescription retinoid with decades of clinical evidence behind it. It is already retinoic acid – the biologically active form of vitamin A – and therefore does not require the same conversion steps within the skin as cosmetic forms such as retinol and retinal.
However, prescription does not necessarily mean that tretinoin is the most appropriate choice for every person or every skincare goal. It can cause irritation, dryness and peeling, particularly during introduction, and its use needs to be appropriate for the individual.
For this reason, the development of cosmetic retinoids has not simply been an attempt to make increasingly stronger products.
Much of the innovation has been about achieving effective vitamin A delivery while improving stability and skin tolerability.
Understanding the Vitamin A Pathway
Different forms of vitamin A enter the pathway at different stages.
A simplified version is:
Retinyl esters → Retinol → Retinal (retinaldehyde) → Retinoic acid
This helps explain why the words retinol, retinal and retinoid don’t all mean exactly the same thing.
Retinyl Esters
Retinyl esters are gentler forms of vitamin A that require several conversion steps before ultimately reaching retinoic acid. They can provide a more gradual approach to vitamin A and may be considered where a more conservative introduction is appropriate.
Retinol
Retinol became the best-known cosmetic form of vitamin A and remains one of skincare’s most extensively researched ingredients.
Within the skin it follows the pathway: two steps away from retinoic acid
Retinol → Retinal → Retinoic acid
For many years, the development – and marketing – of retinol products became increasingly focused on concentration.
The message was often:
start low and progress to something stronger. But we now understand that percentage alone cannot tell us how well a retinoid product will perform.
Retinal – or Retinaldehyde
Retinal, also called retinaldehyde, sits one step closer to retinoic acid:
Retinal → Retinoic acid
Unlike retinol, which must first convert to retinal and then to retinoic acid, retinal requires only one further conversion step.
This has made retinal increasingly interesting in modern skincare.
However, being closer to retinoic acid doesn’t automatically make every retinal product superior to every retinol product.
There is another important part of the story.
The Formulation Matters
Retinoids can be unstable and may gradually degrade when exposed to factors such as light, oxygen and heat. An impressive active ingredient is of limited value if too much of it has degraded before it reaches your skin.
This is why modern retinoid development isn’t simply about discovering different forms of vitamin A. It is also about protecting and delivering them effectively. Modern formulations may use sophisticated stabilisation, encapsulation, controlled release or delivery technologies designed to protect the retinoid and influence how it is presented to the skin.
The surrounding formulation may also contain ingredients intended to support hydration and the skin barrier. Consequently, two products displaying apparently similar percentages of a retinoid may not necessarily perform in exactly the same way.
The retinoid matters. The formulation matters. The delivery matters and how it is stabilised. And your skin matters.
Why Stronger Isn’t Necessarily Better
This represents one of the biggest changes in the way we think about vitamin A skincare.
Historically, retinol users were often encouraged to progress towards increasingly high percentages.
But stronger isn’t necessarily better if the result is persistent irritation, disruption of the skin barrier or a product that becomes too uncomfortable to use consistently.
Red, peeling skin isn’t the objective of a good retinoid programme.
A well-formulated product that your skin tolerates and that can be used consistently may ultimately be more appropriate than an aggressive formulation that repeatedly must be stopped.
Modern vitamin A skincare therefore increasingly attempts to balance:
Efficacy + Delivery + Tolerability
What About the New Generation of Retinoids?
Retinol hasn’t suddenly become outdated.
It remains an important and extensively researched cosmetic retinoid.
What has changed is the science surrounding it.
We now have different forms of vitamin A alongside increasingly sophisticated ways of stabilising and delivering them. There is also growing interest in formulations that combine more than one retinoid or use newer retinoid technologies.
This is an exciting area of skincare research, but it is important to keep it in perspective.
More retinoids in one bottle doesn’t automatically mean a better product.
Likewise, words such as advanced, dual retinoid or multi-retinoid do not by themselves tell us whether a formulation is effective or whether it is appropriate for your skin.
The finished formulation still matters.
So Which Vitamin A Should You Choose?
There isn’t one answer for every skin.
Someone beginning vitamin A may require a completely different formulation from someone who has used retinoids successfully for many years.
A person concerned predominantly with pigmentation may have different requirements from someone concerned with blemishes, texture or established photoaging.
Sensitive, reactive or compromised skin may require another approach again.
Rather than simply asking:
“What percentage retinol should I use?”
we think there are better questions:
- What are we trying to improve?
- Which form of vitamin A is appropriate for your skin?
- How is it formulated and delivered?
- Can your skin tolerate it sufficiently well to use it consistently?
- And how does it fit with the rest of your skincare programme?
The Medifine Approach
At Medifine Aesthetics, we work with a carefully selected portfolio of professional skincare formulations offering different approaches to vitamin A.
We don’t believe there is one vitamin A product that is right for everybody.Our role is to understand why your skin may benefit from vitamin A and to recommend an appropriate formulation according to your skin, your concerns, your previous experience with retinoids and your tolerance.
This is also why our recommendations continue to evolve. Skincare science does not stand still. We continue to follow the research and evaluate newer formulations, delivery systems and retinoid technologies as they emerge.
But being new, stronger or containing more forms of vitamin A does not automatically make something better.
Our focus remains on what the formulation offers and, most importantly, whether it is appropriate for the individual skin.
The Question Has Changed
Twenty years ago, the question was often:
“What percentage retinol should I use?”
Today, perhaps the better question is:
“Which vitamin A approach is right for my skin?”
Because the future of retinoid skincare isn’t simply about using more vitamin A.
It is about understanding your skin and using vitamin A more intelligently.
Not Sure Which Vitamin A Is Right for Your Skin?
With so many different forms of vitamin A now available, choosing the right product can feel confusing. Throughout this article, we have looked at how vitamin A skincare has evolved – from established retinol and retinal to advances in stabilisation, delivery systems and newer retinoid technologies.
Our comprehensive retinoid range at Medifine reflects this evolution.
We carefully select the professional skincare ranges we offer to give us access to different forms of vitamin A, strengths, formulation technologies and approaches to delivery and skin tolerance.
This breadth of choice is important because there is no single retinoid formulation that is right for every skin. It allows us to recommend according to your skin, your concerns, your previous experience with vitamin A and what we are trying to achieve, rather than simply recommending the highest percentage or the newest product.
Education and advice are at the heart of what we do – and something we genuinely love.
We want you to understand why we are recommending a particular vitamin A approach, what we hope it will achieve for your skin and how to introduce it appropriately into your wider skincare programme.
And because retinoid science continues to evolve, so do we. We continue to review emerging research, formulations and technologies and carefully consider where they may offer meaningful benefits for our clients.
Let Us Help You Choose
Whether you are new to vitamin A, already using a retinoid and looking to progress, or simply wondering whether there may now be a more appropriate option for your skin, we are here to help.
Get in touch with Medifine Aesthetics and let us help you navigate the choices.
Because the goal isn’t simply to use vitamin A.
It’s to use the right vitamin A, in the right way, for your skin intelligently.
Medifine Aesthetics www.medifine.co.uk
enquiries to: info@medifine.co.uk
Tele:0113 225 3938