When natural products irritate your skin, the frustration is completely understandable. You switched to natural skincare because it was supposed to be gentler. Fewer harsh chemicals, simpler ingredients, less of the stuff you’d been quietly suspicious of for years. And then something plant-based, lovingly described on the label, made your skin react.
It’s one of the most common things people tell me and I completely understand the frustration. The ‘natural equals safe’ assumption is well-meaning but it’s not how chemistry works and that gap between assumption and reality is exactly where the confusion lives.
Before I started formulating for Sugarbush, I spent years in marine biology studying how living systems respond to their environments. What I kept coming back to was this: exposure to the wrong compound, at the wrong concentration, will produce a response. Whether that compound came from a lab or a plant is beside the point. So, here’s what’s actually going on when a ‘natural’ product upsets your skin.
Plants Are Complicated
A single essential oil can contain dozens of distinct chemical compounds. Some of those are beneficial. Some are potential allergens. A few (depending on the oil, the concentration and the person) can cause a reaction or skin irritation. I recently wrote a blog about allergens in essential oils, read it here for more information.
Lavender is a good example because everyone assumes it’s the safe one. It contains linalool and geraniol, both of which can oxidise over time. With repeated exposure, they can trigger sensitisation in some people. That doesn’t make lavender a problem ingredient. However, it means concentration, formulation quality and your individual skin chemistry all matter. These are separate things from whether the ingredient is natural.
Citrus oils are another one worth knowing about. Several are phototoxic i.e. the compounds they contain can react with UV light and cause skin damage when used in leave-on products. Bergamot is the most commonly flagged – fine in a rinse-off product or when used at very low concentrations. This is something to pay attention to on a face oil you’re wearing outdoors although I would be surprised if a reputable formulator would utilise a phototoxic oil in a product like this.
This is why I research dermal limits, allergen thresholds and known sensitisers for every ingredient I formulate with, not just whether something sounds appropriately botanical.
Why Natural Products Irritate Skin
When natural skincare products irritate your skin, there could be several reasons and it is usually a process of elimination to resolve it. So, here are the five most common areas to look at.
1. Essential oil concentration
If a product is heavily scented or leaves a warming, tingling feeling shortly after application, the essential oil load may be too high for your skin or you’re sensitive to a specific compound it contains. Regulatory bodies like IFRA (International Fragrance Association) publish maximum dermal limits for fragrance compounds and responsible formulators work within those guidelines. Some work well below them.
2. Carrier oils that don’t suit your skin type
Not every plant oil suits every person. Coconut oil can block pores in people prone to breakouts. Olive oil is rich in oleic acid, which some people find perfect for dry skin and others find congesting. If you’re reacting to a product, it’s worth looking at the carrier oils (not just the essential oils) and consider whether they match your skin’s needs.
3. The preservative system
Any product containing water needs a preservative. Without one, bacteria and mould can grow within days. The most widely used natural preservative, sold under names like Preservative Eco, Geogard ECT and Plantaserv M, contains benzyl alcohol. This is a listed allergen and occasionally causes irritation in sensitive individuals. It’s safe at recommended concentrations, but it’s worth knowing if your skin is particularly reactive.
As a side point, vitamin E and rosemary extract are often confused with preservatives. Both are antioxidants which slow oil rancidity, but they do nothing to prevent microbial growth. A product that lists either of these as its only ‘preservation’ is either water-free (in which case a preservative isn’t needed) or inadequately preserved.
4. Your skin’s current state
A barrier that’s already stressed from over-cleansing, illness, stress or just a run of bad weather, is considerably more reactive than a healthy one. This means ingredients you’ve used for years can suddenly cause a response if your barrier isn’t in good shape. This is one of the less obvious reasons I’d always suggest waiting until your skin is settled before introducing anything new. If you want to know more about repairing a skin barrier, you can read more here.
5. How you’re using it
Layering lots of products, leaving things on longer than intended, applying to broken or inflamed skin or using something more frequently than recommended can cause a reaction that might otherwise not occur. Sometimes the product is fine and the method is the issue.
Reaction vs Adjustment – How to Tell
Sometimes, natural products irritate skin BUT not every change your skin goes through in the first week of a new product is a reaction. Some people go through a short adjustment when they switch to simpler, more ingredient-focused products – this is particularly the case if they’ve been using things with a lot of silicones or heavy occlusives.
A genuine irritant reaction is usually quick. Redness, stinging, or burning within minutes to an hour of application is worth paying attention to. Allergic reactions tend to develop more slowly, sometimes over days or weeks of repeated exposure.
Anything persistent, uncomfortable or more than mild is worth stopping for. If it doesn’t settle, speak to a pharmacist or GP.
What to Do
When products, natural or otherwise, irritate your skin…stop using the products. Give your skin a week or two on the simplest possible routine. It’s best to stick to un-fragranced products, minimal exposure and nothing new while your skin settles.
When things have calmed, reintroduce one product at a time. Patch test properly: inside of the wrist or elbow, 24 hours before applying anything to your face.
If you’ve reacted to several different natural products, try to identify what they have in common. A specific essential oil, a particular botanical extract or a preservative showing up across multiple products is useful information.
How I Approach This at Sugarbush
Short ingredient lists aren’t just an aesthetic choice. Fewer ingredients mean a simpler supply chain, a clearer picture of what’s in each product and an easier process of elimination if something doesn’t suit you.
I keep essential oil concentrations conservative. I work within established safety guidelines. If you have a known sensitivity, message me before ordering. I’d genuinely rather help you figure out whether something is right for you than have you dealing with a reaction.
The goal was never to sell you as much as possible. It was to make things that work for the person using them.
Before You Try Anything New
Patch test. It takes 24 hours and it’s genuinely the simplest form of skin protection there is. This applies to Sugarbush products as much as anything else.
Explore More
How to build a natural skincare routine – that actually works!
Preservatives in skincare: why they’re essential (and when they’re not)
The work you don’t see: What goes into making safe natural skincare
Got questions about specific ingredients or how to help your skin? Get in touch, I’m happy to help.
