Why layering matters
Dr. Laura's Guide | June 2026
How to Layer SPF Properly (Because Most People Are Doing It Wrong)
SPF is the most evidence-backed anti-ageing step in any skincare routine and the one most people apply incorrectly. Not necessarily the wrong product, but the wrong way, in the wrong order, in the wrong amount. The result is protection that's significantly lower than what the label suggests.
It's one of those things where a small change makes a meaningful difference.
SPF factors are tested in lab conditions using a specific amount of product applied to a specific surface area. In practice, almost nobody applies enough. The standard recommendation is about a teaspoon for the face and neck, or roughly a two-finger rule, two fingers of product drawn from the base of your index finger to the tip. Most people apply a third of that, which means the actual protection they're getting is considerably less than the number on the bottle.
Layering products also dilutes SPF. If you apply a moisturiser with SPF 20 and then a foundation with SPF 15 and assume you're covered to SPF 35, that's not how it works. SPF factors don't add together. What you get is approximately the highest SPF of whatever you've applied, and only if you've applied enough of it.
The order matters too. Applied in the wrong sequence, SPF either sits on top of products it can't properly adhere to, or gets diluted by products applied over it.
The correct order on the face
Cleanser, treatment serums, moisturiser, SPF. That's it.
When I say treatment serums, it shoud really include an antioxidant.
When you pair an antioxidant (Vitamin C or Niacinamide) with SPF, you're levelling up your protection.
SPF goes on last in your morning routine, after everything else has had a moment to absorb, and before any colour or makeup. Think of it as a protective film over everything beneath it. Anything applied on top of it that isn't SPF is diluting that film.
If you're wearing makeup, apply SPF and let it settle for two to three minutes before foundation. It will sit better, look better, and the protection will be more consistent.
Scroll to the end for my top tip on layering SPF on the face if you're serious about sun protection.
Choosing the right SPF for daily use
LRP Anthelios UVMune 400 Invisible Fluid SPF50+
The LRP Anthelios UVMune 400 Invisible Fluid SPF50+ is one of the best everyday options for layering. It's pretty much invisible on skin, it dries down quickly without greasiness or tackiness, and it layers cleanly under makeup. The UVMune Mexoryl 400 filter provides protection against ultra-long UVA rays that most standard filters miss. Non-comedogenic, hypoallergenic, sweat-resistant.
When it comes to protection, you won't find much better than this.
Isntree Hyaluronic Acid Watery Sun Gel SPF50+
The Isntree Hyaluronic Acid Watery Sun Gel SPF50+ is the Korean option for anyone who finds European formulas too heavy. The gel texture absorbs completely, leaves no white cast and no greasiness, PA++++ UVA rating alongside the SPF50. One of the lightest formulas we stock.
Mimetique Everyday 50
The Mimetique Everyday 50 is ideal for anyone who wants SPF without a separate moisturiser step. A lightweight fluid that protects from UV while maintaining hydration with a natural invisible finish. Simplifies the routine without compromising protection.
Colorescience Face Shield SPF 50
For those who want SPF and coverage in one step, the Colorescience Total Protection Face Shield range covers it. The Flex gives a sheer tint that works across skin tones. The Glow adds luminosity. The Matte controls shine. All mineral SPF50 with broad-spectrum protection including blue light and infrared defence. Apply generously as your final step and you have protection and an even base in one product.
The reapplication problem, and the products that solve it
This is where most people fall short. SPF needs to be reapplied every two hours in direct sun, and roughly every four hours indoors. If you're wearing makeup, you are almost certainly not doing this.
There are two formats that make reapplication over makeup genuinely practical: powder SPF and sticks.
Colorescience Total Protection Brush-on-Shield SPF50
The Colorescience Total Protection Brush-on-Shield SPF50 is a powder SPF in a brush applicator that you sweep over your face and neck without disrupting makeup underneath. No rubbing, no streaking, just a fresh layer of mineral protection. It's the only powder sunscreen recommended by The Skin Cancer Foundation for active use. Keep it in your bag and use it at midday.
Darling Shield-Me SPF50+
SPF sticks are the other format worth having in your rotation. They apply cleanly and precisely, work over makeup without disturbing it, and are particularly good for targeted areas like the nose, cheekbones and forehead where UV hits hardest.
The Darling Shield-Me SPF50+ stick is one of our best sellers. Clear, fragrance-free, face and body compatible, with ceramides and vitamin E in the formula. Swipe it directly onto skin wherever you need a top-up. It goes on invisibly and doesn't leave any residue.
Side note; I didn't mention my current holy grail above, but also from Darling, I love their Glowy Screen SPF50. If you haven't tried it yet, I highly recommend.
LRP Anthelios UVAIR Vitamin Sun Stick SPF50+
The LRP Anthelios UVAIR Vitamin Sun Stick SPF50+ is a compact touch-free option with astaxanthin and vitamin E. A transparent satin finish that applies directly without hands, which makes it genuinely convenient for on-the-go use.
LRP Anthelios UVSPORT Pro-Resistance Stick SPF50+
The LRP Anthelios UVSPORT Pro-Resistance Stick SPF50+ is the one for anyone active outdoors. Powered by Mexoryl 400, it doesn't run or sting the eyes even in heat and sweat, and the invisible finish means it works on any skin tone without leaving a cast.
Tocobo Cotton Soft Sun Stick SPF50+
The TOCOBO Cotton Soft Sun Stick SPF 50+ is one of our Korean top-up options. It's super affordable, gives a slightly matte finish, and layers well over makeup without pilling. If you love the TOCOBO Bio Watey Sun Cream (a PHARE Favourite), you'll love this too.
SOLAS SPRITZ SPF 30 HYDRATING FACE MIST
Although they don't offer as much protection (unless you really lash them on), mists are another great way to stay topped up. Use plenty, and you may want to use them more than every 2 hours just to be on the safe side.
This mist from Solas is SO refreshing, hydrating, and has a perfect mist application which is important too. From our fab Irish SPF brand, SOLAS, a handy handbag essential this summer.
On the body
Darling Protect-Me SPF50 body lotion
The same principles apply, though reapplication logistics are simpler without makeup. Apply generously before sun exposure and reapply every two hours when outdoors. A common mistake is applying too little at the start and assuming one application lasts all day regardless of swimming, sweating or towelling off.
The Darling Protect-Me SPF50 body lotion is our everyday recommendation. Ceramides and vitamin E alongside broad-spectrum UV protection in a formula that absorbs well without white cast or heavy residue. Apply more than you think you need.
Heliocare 360 Gel Oil Free Dry Touch SPF50
The Heliocare 360 Gel Oil Free Dry Touch SPF50 is a lightweight option that works on both face and body. Fast-absorbing, dry-touch finish, Fernblock antioxidant protection alongside UV defence.
TLDR; THE SPARK NOTES:
Apply more than you think you need.
SPF goes last in your morning routine, before makeup.
Let it settle for two to three minutes.
Reapply every two hours in direct sun using a stick, powder or mist.
Don't rely on the SPF in your foundation or moisturiser as your main protection.
If you came for my bonus tip... here it is;
Chemical SPF + Mineral SPF = Maximum protection.
When I say chemical SPF, people are sometimes taken aback.
Chemical SPF just means your standard, non-mineral SPF. They contain ingredients like Avobenzone, Oxybenzone, Octinoxate, Octocrylene, Homosalate, and Octisalate. Mineral SPF on the other hand contain mineral filters like; Zinc Oxide or Titanium Dioxide.
I don't believe one type of SPF is better than the other. They work in different ways and interact with your skin in unique ways. My approach is generally to layer the two! Two full finger lengths of your chemical SPF, which are usually super lightweight and rub in easily, followed by a nice layer of your mineral SPF. Mineral SPFs can sometimes be a bit thicker or have a tint - so its hard to use the amount you need to guarantee full protection.
My current lineup?
Darling Glowy Screen SPF 50 (chemical SPF)
Obagi Sun Shield SPF 50+ (mineral SPF)
The information in this article is intended for general educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. If you have concerns about your skin, please speak to a qualified medical professional. If you'd like to discuss your skincare with us, we're happy to help.
