Prickly Pear Seed Oil & Frankincense Magic: DIY Anti Ageing Face Serum

If you’ve ever stood in front of the mirror wondering why your usual moisturiser isn’t quite cutting it anymore, you’re not imagining things. Skin changes with age in ways that a basic cream often can’t keep up with: less collagen, slower cell turnover, a thinner barrier that lets moisture slip away faster than it should.

That’s exactly the gap that a well-formulated facial oil is designed to fill.

This particular pairing, prickly pear seed oil and frankincense essential oil, has been getting a lot of attention lately, and for good reason. One is a genuinely rare, nutrient-dense carrier oil. The other is one of the most researched essential oils for supporting ageing skin. Together, blended properly, they make a serum that does considerably more than sit on the surface and shine.

I’m Patri Hernández, a certified organic skincare formulator and dermocosmetic technician with a background in health coaching. I specialise in natural skincare, botanical ingredients, essential oils and practical, evidence-informed approaches to ageing skin.

This post may contain affiliate links. If you buy through one of them, I may earn a small commission at no extra cost to you. Affiliate relationships never influence what I recommend; I only suggest products and ingredients I genuinely think are worth your money.

Why prickly pear seed oil deserves the hype

Prickly pear seed oil comes from the tiny black seeds inside the fruit of the Opuntia ficus-indica cactus, sometimes called nopal or Barbary fig.

It’s one of the most labour-intensive oils in natural skincare. It takes somewhere between 1,000 and 1,500 seeds to produce a single 30ml bottle. That scarcity is part of why it costs more than your average carrier oil, but the composition explains why formulators keep reaching for it anyway.

What makes it useful for ageing, mature skin:

• High in linoleic acid. This omega-6 fatty acid is a structural building block of your skin’s own barrier lipids. Research on essential fatty acids shows that linoleic acid-rich oils help the skin hold onto moisture and resist the kind of low-grade barrier damage that makes fine lines more visible.
• Naturally rich in vitamin E. A cold-pressed analysis of Opuntia ficus-indica seed oil confirmed meaningful tocopherol content alongside its antioxidant activity, which matters because vitamin E helps mop up the free radicals generated by everyday UV and pollution exposure.
• Lightweight and fast-absorbing. Unlike heavier oils that can sit greasy on mature skin, prickly pear seed oil sinks in quickly, which is part of why it’s popular as a facial oil rather than just a body oil.
• Low comedogenic rating. It’s generally considered suitable for combination and acne-prone skin too, not just dry or mature complexions.

A quick honesty check here, because bloggers without formal training often overstate this: the research on prickly pear seed oil is still relatively young. There are good chemical composition studies and laboratory antioxidant assays confirming what’s in the oil, but large human clinical trials on wrinkle reduction specifically are still thin on the ground. What we can say with confidence is that the oil is genuinely nutrient-dense and behaves the way you’d expect a linoleic-acid-rich, vitamin E-rich oil to behave on skin. What we can’t yet say is that it’s been proven in controlled trials to erase wrinkles. Treat it as a strong, well-supported ingredient rather than a miracle cure, and you’ll get much closer to how it actually performs.

Why frankincense is the essential oil formulators keep reaching for

Frankincense, or olibanum, is the resin harvested from Boswellia trees, most commonly Boswellia carterii, Boswellia sacra or Boswellia serrata.

This isn’t a trendy newcomer. Frankincense has been used in skin preparations for thousands of years, but it’s also one of the few essential oils with a genuinely interesting body of modern research behind it.

A 2023 study published in PLOS One looked specifically at frankincense essential oil’s effect on UVB-induced photodamage. The researchers found that the oil showed measurable anti-collagenase and anti-elastase activity in laboratory testing, meaning it helped slow the breakdown of collagen and elastin, the two proteins most responsible for skin firmness. When formulated and tested on UV-exposed skin, it helped protect against epidermal thickening and collagen degradation.

That’s a genuinely promising signal. It’s not the same as a large human clinical trial proving frankincense reduces wrinkles in people, and the study used a specialised nanoparticle delivery system rather than a simple diluted oil, so the results don’t translate one to one into “rub frankincense on your face and get the same effect.” But it does tell you the mechanism is plausible and worth taking seriously, not just a wellness rumour.

Frankincense is also valued for:

• Mild astringent properties, which can help skin appear more toned and even
• Calming, anti-inflammatory effects that make it a common choice for reactive or sensitive-leaning mature skin
• A warm, grounding scent that most people find easy to live with, unlike some of the sharper citrus or herbaceous oils

The recipe: prickly pear and frankincense face serum

This is a simple two-part formulation: a carrier oil doing the bulk of the nourishing work, with frankincense essential oil added at a safe facial dilution.

What you’ll need

• 1 fl oz (30ml) prickly pear seed oil
• 6 drops frankincense essential oil
• A dark glass dropper bottle, amber or cobalt blue

That’s it. This is genuinely a two-ingredient recipe once you strip away the marketing language, and that’s not a bad thing. Facial oils don’t need ten ingredients to work well; they need the right two or three, correctly proportioned.

Optional additions

• A few drops of vitamin E oil, which acts as a natural antioxidant and can extend shelf life slightly
• A drop or two of rosehip oil if you want to boost the vitamin A content, since rosehip is one of the better-studied oils for supporting collagen-related skin renewal

Why dark glass matters

Prickly pear seed oil, like most nutrient-dense carrier oils, is sensitive to light and heat. Clear plastic or clear glass will speed up oxidation, which shortens shelf life and degrades the very antioxidants you’re paying for. Amber or cobalt glass blocks the light that triggers this breakdown.

Step by step: how to make it

1. Sterilise your dropper bottle. Wash it in hot soapy water, rinse thoroughly, and let it air dry completely. Any moisture left in the bottle can encourage bacterial growth in your finished oil.
2. Measure the prickly pear seed oil. Using a small funnel, pour 30ml into the bottle. This is your base, carrying the essential oil safely to your skin.
3. Add the frankincense. Six drops in 30ml works out to roughly a 1 percent dilution, which is the standard, widely recommended concentration for facial application according to aromatherapy safety references, including the Tisserand Institute’s own dilution guidance. This is not a place to eyeball it generously. More frankincense does not mean more benefit; it just increases your chance of irritation.
4. Cap and shake gently to distribute the essential oil evenly through the carrier.
5. Label the bottle with the date you made it. This sounds unnecessary until you’re three months in and can’t remember whether it’s fresh.

That’s the whole process. No heating, no emulsifying, no waiting period, though I’d still recommend letting a fresh blend sit for 24 hours before your first full-face application, simply to give yourself time for the patch test below.

How to use it

• Apply to clean, slightly damp skin, ideally straight after cleansing while your pores are still open and skin is receptive.
• Two to three drops is plenty for the whole face. Warm the oil between your palms first, then press it gently into your skin rather than rubbing.
• Use once daily, in the evening, to start. Facial oils layer well under a night cream if your skin still wants extra richness, or can be worn alone.
• Always follow with sun protection the next morning. This applies to any facial oil, but it’s worth repeating because it’s the step people skip most often, and UV exposure is still the single biggest driver of visible skin ageing.

Patch testing: don’t skip this step

Essential oils, even beautifully diluted ones, are a common trigger for sensitivity, especially on facial skin, which is thinner and more reactive than skin elsewhere on the body.

Apply a small amount of the finished serum to the inside of your forearm or behind your ear. Wait 24 to 48 hours. If you notice redness, itching, burning or bumps, don’t proceed to your face. This is a five-minute step that saves you from a much longer recovery if your skin reacts.

Common mistakes to avoid

• Using undiluted frankincense directly on skin. Essential oils are concentrated plant extracts; a single drop can represent the aromatic compounds of a large amount of plant material. Applying frankincense neat significantly raises your risk of irritation or sensitisation, even in people who’ve used it before without issue.
• Storing the serum near a sunny windowsill. Heat and light both accelerate oxidation. A bathroom cabinet or bedside drawer is a far better home for it.
• Using too much product. More oil doesn’t mean more benefit; it usually just means greasy skin and a bottle that runs out before it should.
• Skipping the patch test because you’ve used similar products before. Reactions to essential oils can develop over time with repeated exposure, so “I’ve never reacted before” isn’t a guarantee.
• Expecting overnight results. Facial oils work gradually, supporting barrier function and skin comfort over weeks, not days.

Who should be cautious

• Pregnant or breastfeeding. Frankincense is generally considered low risk, but always check with your midwife, doctor or a qualified aromatherapist before introducing a new essential oil during pregnancy.
• On photosensitising medication or undergoing certain skin treatments. While frankincense itself isn’t known to be phototoxic, any new active on the skin is worth discussing with a dermatologist if you’re using prescription retinoids, undergoing chemical peels, or on medication that affects skin sensitivity.
• History of allergic reactions to Boswellia or related resins. If you know you react to frankincense incense or resin, skip the essential oil version too.
• Very reactive or eczema-prone skin. Consider halving the dilution to around 0.5 percent (three drops in 30ml) rather than skipping the essential oil altogether, or trial the carrier oil alone first.

How often to use it, and how long it lasts

Once cured and blended, this serum has a reasonable shelf life for a natural oil blend, typically around six to nine months when stored properly in a cool, dark place with the cap kept tightly closed between uses. The vitamin E content in prickly pear seed oil offers some natural protection against oxidation, but it isn’t indefinite.

You’ll know it’s turned if the scent shifts from the warm, resinous frankincense aroma to something sharper or almost crayon-like. That’s your cue to make a fresh batch rather than push through the last few millilitres.

Frequently asked questions

Can I use this serum every day?

Yes, most people tolerate a properly diluted frankincense serum for daily use, though I’d suggest starting with every other evening for the first week or two while you confirm your skin agrees with it.

Is prickly pear seed oil the same as prickly pear fruit oil?

No, and this trips a lot of people up. Prickly pear seed oil comes from the seeds and is what’s used in skincare. Prickly pear fruit oil or extract is a different product with a different composition, and it’s the seed oil that carries the vitamin E and linoleic acid content discussed here.

Can I substitute a different carrier oil if prickly pear seed oil is out of my budget?

Rosehip oil is a reasonable substitute with a genuinely researched profile of its own, particularly for its vitamin A content. Jojoba oil is a gentler, more affordable option if your skin is sensitive or you’re new to facial oils. The blend simply won’t have quite the same vitamin E and linoleic acid concentration.

Why frankincense specifically, rather than another essential oil?

Frankincense has one of the stronger evidence bases among essential oils marketed for ageing skin, with laboratory research supporting its anti-collagenase and antioxidant activity. That said, geranium and rosemary are also reasonable, well-tolerated choices if you want to rotate or if frankincense doesn’t agree with you.

Will this serum clog my pores?

Prickly pear seed oil has a low comedogenic rating, so it’s generally considered suitable for combination and acne-prone skin, though as with any new product, individual skin can respond differently.

A final thought

Natural skincare gets a reputation for being vague, all “glow” and no substance. This particular pairing is one of the cases where the reputation and the reality actually line up. Prickly pear seed oil brings a genuinely impressive nutrient profile to the table, and frankincense brings a body of laboratory research that’s more substantial than most essential oils can claim.

Used consistently, diluted correctly and stored properly, this is a serum that earns its place in a mature skin routine rather than just decorating your bathroom shelf.

If you’re building out a full evening routine around this serum, you might also find my simple, less-is-more approach to facial care useful for working out what to layer it with.

References

• PLOS One: Protective potential of frankincense essential oil against UVB-induced photodamage
• Molecules: Chemical Composition and Antioxidant Potential of Opuntia ficus-indica Seed Oil
• Journal of Pharmacopuncture: Chemical Composition of Cactus Pear Seed Oil
• Tisserand Institute: Essential Oil Dilution Guidelines

Love, Patri xx