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Natural Deodorant for Sensitive Skin: What Actually Works If you have sensitive skin and you've tried a natural deodorant, there's a fair chance it didn't go well. Redness, stinging, small bumps, an itch that gets worse by the afternoon. It's common enough that it's become its own search term, and common enough that a lot of people quietly go back to their old antiperspirant and assume natural just isn't for them. It usually isn't the category that's the problem. It's the formula. What "Sensitive Skin" Actually Means Here Underarm skin is thinner and more reactive than most people expect, and it's under more pressure than almost any other patch of skin on your body. It gets shaved or waxed regularly, it sits in a warm, enclosed environment most of the day, and it's asked to host a product every single morning. Any irritation gets compounded fast. Your skin also sits at a naturally acidic pH, somewhere around 4.5 to 5.5. That matters more than most deodorant labels let on. The Ingredient Doing the Damage Sodium Bicarbonate, baking soda, is the backbone of most natural deodorant formulas. It's cheap, it's genuinely effective at neutralising odour, and it's alkaline, sitting around pH 9. Every application pushes freshly shaved, already-stressed underarm skin further from where it naturally wants to sit. For a lot of people that's a minor thing. For sensitive skin, it's the difference between a deodorant that works quietly in the background and one that turns your underarms into a problem you're managing every day. Most brands don't lower the dose. They add soothing botanicals around it and call it a sensitive formula. The pH issue is still there underneath. What a Gentler Formula Looks Like Pure & Bloom is Magnesium Hydroxide-led. Magnesium Hydroxide neutralises odour-causing bacteria without the sharp pH shock that high-dose bicarb creates, which is a large part of why sensitive skin tends to tolerate it better. We're not going to tell you our formula has no baking soda. It does, Sodium Bicarbonate sits at around 3%, in a supporting role behind Magnesium Hydroxide rather than doing the heavy lifting. That's an honest distinction worth understanding when you're choosing between formulas: it's not about finding one with zero bicarb, it's about finding one where bicarb isn't the main event. Alongside that, the base is built from ingredients chosen to support the skin barrier rather than just sit on top of it: Mango Butter, Shea Butter, Squalane, Bisabolol, Candelilla Wax. Bisabolol in particular is there specifically because it's calming on skin that's already prone to reacting. What Else to Check on a Label Two things worth looking for if you're shopping around, sensitive skin or not. First, how the product is preserved. A single generic fermentate is the industry default. Pure & Bloom uses two working together, Leuconostoc/Radish Root Ferment Filtrate alongside a Lactobacillus/Cocos Nucifera Fruit Extract, which does more of that work without leaning on synthetic preservatives or a harsher formula elsewhere to compensate. Second, what's actually in the fragrance. "Parfum" on a label is a single word that can legally stand in for dozens of unlisted ingredients, and undisclosed fragrance components are one of the more common causes of underarm reactions that people never trace back to the real source. Every essential oil in Pure & Bloom is named individually, by its INCI name, on every jar. If something in the scent doesn't agree with you, you can actually see what it was. How to Actually Switch, If Your Skin Is Reactive A few things make the transition easier regardless of which formula you choose. Patch test first, particularly if you have a history of reactions. Apply a small amount to clean, dry skin and leave it a day before committing to full use. Apply to completely dry skin, ideally not straight after shaving. Freshly shaved skin is at its most reactive, and giving it even twenty minutes before application reduces a lot of unnecessary irritation. Give it more than a few days before judging. Your skin and underarm microbiome need a short adjustment period after antiperspirant, and reacting to that adjustment isn't the same as reacting to the formula itself. If irritation continues past the first week or two, that's the signal to look at the ingredients rather than push through. The Honest Version There's no formula that works for every single person, sensitive skin especially. What you can control is choosing one built around a genuinely gentler lead ingredient, with every fragrance component named rather than hidden, and judging it over a proper adjustment period rather than the first application. Pure & Bloom is handmade in small batches in Yorkshire, in 60ml amber glass jars with bamboo lids, across four scents: Citrus Paradise, Blossom Soft, Moss & Wood, and Cloud Serenity. If your underarms have struggled with natural deodorant before, the formula is usually the reason, and it's worth trying one built differently. Shop the full range at pureandbloom.co.uk.

What Does "Parfum" Mean on a Deodorant Label? If you have ever turned over a deodorant and spotted the word Parfum on the ingredients list, you may have assumed it simply meant fragrance. Something pleasant added to make it smell nice. But that one word is doing a lot more than that. Parfum is not an ingredient. It is a legal loophole. And understanding what it actually means changes the way you read every personal care product label. What "Parfum" actually means Under EU and UK cosmetics regulations, manufacturers are permitted to list fragrance ingredients under a single collective term rather than naming each one individually. That term is Parfum or Fragrance, if the product uses the US convention. This means a formula could contain anywhere from a handful to several dozen individual fragrance chemicals, and none of them have to be disclosed on the label. They all hide behind that one word. The original purpose of this rule was to protect proprietary formulations. A brand's signature scent is considered a trade secret, and the law was designed to prevent competitors from simply reading the label and copying the blend. That logic made sense in a different era. But it has a cost for the person using the product. Why it matters for your underarms specifically Your underarms are not ordinary skin. The skin there is thinner than most parts of your body. It is often freshly shaved or waxed, which creates micro-abrasions that allow ingredients to absorb more readily. And deodorant is a leave-on product, it sits against your skin for hours, sometimes all day. That combination means that whatever is in your deodorant has more opportunity to interact with your skin than a product you rinse off. If that product contains undisclosed fragrance components, you have no way of knowing what you are actually exposing your skin to. For most people, that may never be a problem. But for people with sensitive skin, fragrance allergies or reactions to specific compounds, Parfum is a wall they cannot see past.   What can Parfum contain? Fragrance blends can include synthetic aroma chemicals, fixatives, carrier solvents, preservatives and natural extracts, sometimes all in the same formula. Some of these are benign. Some are known allergens. The EU and UK do require brands to disclose 26 specific fragrance allergens separately on the label if they are present above certain concentrations. But that list covers only a fraction of the thousands of fragrance compounds used in cosmetics. Everything else can legally remain hidden behind Parfum. Why most "natural" deodorants still use it This is worth saying clearly, because it surprises a lot of people. Many deodorant brands that market themselves as natural, clean or plant-based still list Parfum on their labels. This happens for a few reasons. Some brands use a commercial fragrance blend supplied by a third party. The blend is a finished product in itself, and its full composition is proprietary, so even if the brand wanted to disclose it, they may not have the full breakdown. Some brands add Parfum as a small percentage and consider it low-risk, particularly if the rest of the formula is natural. And some brands simply follow the conventional industry norm without questioning it. None of this is necessarily illegal. But it does mean that the word "natural" on the front of a jar tells you very little about the transparency of what is actually inside it. What to look for instead If you want to know what is actually creating the scent in your deodorant, look for brands that list every fragrance ingredient individually by its INCI name. INCI stands for International Nomenclature of Cosmetic Ingredients. It is the standardised naming system used across the beauty industry. When a brand names each essential oil individually, Citrus Aurantium Bergamia Peel Oil, Lavandula Angustifolia Oil, Pelargonium Graveolens Flower Oil — rather than grouping them under Parfum, you can see exactly what you are putting on your skin. That is not common. But it is possible. How Pure & Bloom approaches fragrance Every Pure & Bloom deodorant is scented using a blend of 100% natural essential oils. And every one of those oils is named individually on the label. Not as Parfum. Not as Natural Fragrance. Not as Essential Oil Blend. Each one by its actual INCI name, in the correct order, on every jar. For Citrus Paradise, that means you can see Citrus Sinensis Peel Oil Expressed, Citrus Reticulata Peel Oil, Citrus Aurantium Bergamia Peel Oil Expressed, Citrus Aurantifolia Oil Distilled and Citrus Paradisi Peel Oil Expressed listed individually. You know exactly which oils are creating that scent. You can research each one. You can make an informed choice. For Cloud Serenity, you will find Citrus Aurantium Bergamia, Lavandula Angustifolia, Salvia Sclarea and Amyris Balsamifera listed by name. Nothing unnamed. Nothing hidden. This approach takes more care in formulation and more precision in labelling. It means there is no shortcut, no catch-all term to fall back on. We think that is the standard that leave-on underarm care should be held to. The bottom line Parfum is legal. It is common. It is used across almost every category of personal care. But it is not transparent. If you care about knowing what is on your skin, particularly in a product you wear every day, on one of the most absorbent areas of your body, it is worth checking whether your deodorant names every ingredient or hides some behind a single word. Your underarms deserve the same level of ingredient transparency you would expect from any skincare product. That is the standard Pure & Bloom was built around.

Switching to natural deodorant is not always instant. The first few weeks can be messy, confusing and very real. Here’s what to expect, and why it does not mean your deodorant is failing.

Magnesium Hydroxide is the lead deodorant active in every Pure & Bloom jar. Find out what it is, how it works, and why it's gentler than baking soda-heavy formulas. Handmade in Yorkshire.

Discover why Pure & Bloom uses Magnesium Hydroxide as the hero ingredient in our natural deodorant, for gentle, effective odour protection that feels kind to sensitive skin.