Last Updated on August 25, 2026 by Giorgia Guazzarotti

diy retinol serum

I get it. Retinol is one of the best anti-aging ingredients out there. It boosts collagen production, reduces the appearance of wrinkles and the look of dark spots, and boosts skin cell turnover for a clear-looking complexion and a youthful glow. But, it can get expensive fast. So when you see a DIY retinol serum recipe promising similar results with a few oils and ingredients you can mix in your kitchen? Of course it’s tempting. Jojoba oil. Rosehip oil. Maybe some carrot seed oil thrown in for good measure. It sounds natural, cheap, and ridiculously easy. There’s just one problem: retinol is a nightmare to formulate with.

It’s notoriously unstable and breaks down easily when exposed to things like light, air, and heat. Getting it into a serum that actually stays effective (without irritating the hell out of your skin) isn’t as simple as mixing a few natural ingredients together and calling it skincare. And that’s where most DIY retinol recipes fall apart. So before you turn your bathroom into a skincare lab, here’s what you need to know about DIY retinol serums, why most recipes don’t work the way you think they do, and what you can do instead.

Why Retinol Can’t Be Safely Mixed in Your Kitchen

Think retinol is just another skincare ingredient you can chuck into a bottle with some oils and call it a serum? I wish! Retinol is way more high-maintenance than that. Retinol is notoriously unstable. Light, oxygen and heat can all make it break down. So what can go wrong when you DIY it?

  • Retinol starts degrading when you expose it to light, oxygen and heat: Cosmetic chemists use all kinds of tricks, like antioxidants and encapsulation systems, to help keep it stable. And formulation really matters: one study of commercial retinoid products found losses ranging from 0% to 80% after six months at 25°C, with light causing even more degradation than temperature. 
  • Getting the pH wrong can mess with your formula: Retinol needs the right pH to stay stable, and getting that right at home isn’t easy. Retinol doesn’t have one magic pH that works in every serum, but very acidic conditions can speed up its degradation. In one study, retinol broke down much faster at pH 3 than at pH 7.
  • Getting the concentration right is harder than it sounds: With retinol, more definitely isn’t better. One study compared 0.1%, 0.3% and 1% retinol and found that 0.3% and 1% produced similar changes in several markers of photoaged skin, but 0.3% was much better tolerated. Unless you have the equipment to weigh and formulate retinol accurately, I’d rather not play “close enough” with an ingredient famous for making skin red, sore and flaky.
  • Add water and now you have a preservation problem too: If your DIY serum is just anhydrous oils, this isn’t the same issue. But the minute your recipe contains water, aloe, rice water or another water-based ingredient, microbes become something you need to think about. There’s a reason properly formulated water-based cosmetics contain preservative systems: they’re there to stop bacteria, yeast and mould from turning your skincare into their new home. Research into cosmetic preservation specifically uses microbial challenge testing to check whether a preservative system can actually control microbial growth. Throwing some ingredients into a bottle at home gives you no way of knowing whether yours can. 
  • Natural skin care doesn’t mean effective: To insult to injury, a lot of the DIY retinol serums you see on Pinterest don’t contain a drop of retinol! They use natural oils like rosehip and carrot oils. While these oils contain trace amounts of retinol, they don’t work anywhere near as well as traditional face serums with retinol. It’s like comparing apples to oranges. Totally different thing. 

Why “Natural” Retinol Alternatives Don’t Work the Same Way

A lot of DIY recipes swap retinol for things like rosehip seed oil, carrot seed oil or pomegranate seed oil and call them “natural retinol alternatives.” Yeah, no. That’s not how it works. These oils can absolutely be good for your skin. They’re packed with fatty acids and antioxidants, and can help moisturise your skin and keep your skin barrier happy. But that doesn’t magically turn them into retinol.

Related: Bakuchiol VS Retinol: Which One Is Better?

So if you want to make a simple DIY face oil with rosehip or carrot seed oil, go for it. They can moisturise your skin and give you some antioxidant protection. Just don’t call it a DIY retinol serum. It isn’t one. And don’t assume “natural retinol alternative” means “does everything retinol does, only naturally.” The evidence simply isn’t there.

​Side Effects Of A Retinol DIY Face Serum

Here’s the part those glowing DIY testimonials tend to skip: retinol can seriously irritate your skin when you use too much of it. And when you’re DIYing, getting the dose right isn’t exactly easy. So what can happen when you overdo it?

  1. Your skin barrier takes a hit. Retinoids can increase water loss through the skin, leaving it dry, flaky and sensitive. One study found retinoic acid impaired the skin’s water barrier and increased transepidermal water loss.
  2. Hello, redness and irritation. Retinol can trigger inflammation, redness and peeling – the classic signs of retinoid irritation. Research has linked retinol irritation to inflammatory responses in the skin.
  3. It can make hyperpigmentation worse. Retinoids can actually treat pigmentation, but there’s an annoying catch: if they irritate your skin, that inflammation can trigger post-inflammatory hyperpigmentation (dark marks), particularly in darker skin tones. 
  4. The stronger you make it, the more irritation you risk. Redness, burning and peeling are well-known retinoid side effects. That’s exactly why eyeballing the amount of retinol going into a DIY serum is such a bad idea.

Related: How To Counteract Retinol Side Effects

What About Low Concentration DIY Recipes?

Some DIY enthusiasts argue that using low concentrations of retinol makes it safer to mix at home. This logic sounds reasonable until you remember that low concentrations still oxidize, still require pH balancing, and still need preservatives to stay safe. Diluting retinol doesn’t eliminate the core problems. It just gives you a weaker product that’s equally unstable. You’re taking the same risks for a fraction of the benefit.

And here’s the kicker: most people making DIY retinol serums at home don’t have access to pharmaceutical-grade retinol. They’re buying bulk powders online with no quality control, no purity testing, and no guarantee that what’s in the jar matches the label. You could be rubbing anything on your face. Low concentration or not, the fundamental issue remains. Retinol needs professional formulation. Trying to shortcut that at home doesn’t make you savvy. It makes your skin a test subject.

The Smart Alternative: What Actually Works

If you love the idea of making your own skincare, there are safer, here’s your better approach:

  • Use DIY serums for hydration.
  • Leave retinol to the professionals. Buy products that list retinol, come in opaque or airless packaging, and include stabilizers. Here are my best picks.
  • If you have sensitive skin, mature skin, or specific skin conditions, talk to a dermatologist before adding retinol to your routine. Even the best formulated retinol products can irritate skin. 

DIY Retinol Serum FAQs

What skin type is retinol best for?

Retinol can work for pretty much any skin type, but how you use it matters. Oily skin may prefer lightweight formulas, while dry skin usually needs more help keeping its protective barrier happy. If your skin is sensitive, start slowly or avoid it completely. Irritation isn’t a sign the retinol is “working.”

How long does retinol take to reduce fine lines?

Don’t expect overnight miracles. Clinical studies generally measure improvements in the appearance of fine lines over weeks or months, not days. Retinol works by changing what happens inside your skin cells, including stimulating collagen production, so consistency matters much more than slathering on extra product hoping it’ll work faster.

Can you use vitamin E to keep a DIY retinol serum stable?

Vitamin E can help protect retinol from breaking down, but don’t mistake that for “add vitamin E and problem solved.” One study found that alpha-tocopherol reduced the breakdown of retinol exposed to UV light. But keeping retinol stable depends on the whole formula, not one antioxidant.

Can you add hyaluronic acid to an oil-based DIY retinol serum?

Not by simply mixing the two together. Hyaluronic acid is water-soluble, while retinol is oil-soluble, so you’re now moving beyond simple oil serums and into formulas containing both oil and water. That means you need to worry about getting those phases to stay mixed and protecting a water-containing product against bacterial growth. In other words, you’re no longer making a simple facial oil.

Can you add lavender essential oil to a DIY retinol serum?

You can, but why make an already potentially irritating product even more complicated? Lavender essential oil isn’t going to make your retinol work better or keep it stable enough to solve the problems with DIY retinol.  Bu, like all fragrant essential oils, it can irritate your skin, especially if it’s sensitive. 

Can you add vitamin C to a DIY retinol serum?

I wouldn’t. Vitamin C is another notoriously fussy active ingredient. Pure L-ascorbic acid breaks down easily when exposed to light, oxygen and the wrong pH, so chucking it into a homemade retinol serum doesn’t magically give you the benefits of both. Research shows vitamin C stability depends heavily on the pH and the way the finished product is formulated. You’re basically trying to DIY two difficult active ingredients at once – and that’s not a recipe I’d trust with my face. 

The Bottom Line

DIY skincare can be fun. A homemade face serum with retinol? Not so much. Retinol is simply too fussy to chuck into a bottle with a few oils (even when those oils are as good as argan oil) and hope for the best. You need the right concentration, the right formula and a way to keep it stable – and that’s before you start adding water, vitamin C or anything else that makes formulation even trickier.

If you want the benefits of retinol (fewer wrinkles, faded dark spots, smoother skin, and a more radiant complexion) stick with a properly formulated retinol product. And if you fancy making your own face serum with a natural alternative like rosehip oil instead? Go for it. Just don’t call it retinol or expect it to do the same job. Sometimes, the smartest DIY is knowing what NOT to DIY.