How to Use Déodorant N°1
Getting results from a cream deodorant is slightly different from what you're used to. The formula works, but technique matters. Here's everything you need to know.
The Basics
Apply to clean, dry skin. This is non-negotiable. Wet or damp skin prevents the formula from adhering properly and dilutes the active ingredients before they can do their job. Towel dry thoroughly after showering. If you're in a rush, wait at least 60 seconds after toweling off before applying.
Start with a pea-sized amount for both underarms. Scoop a small amount with your fingertip, split it between both sides, and spread it evenly across the entire underarm area. Then massage in circular motions until the product is barely visible on the skin.
Cover beyond the hair line. Your sweat glands don't stop where your hair stops. Apply the product at least one inch beyond the hair-bearing area in every direction, covering the full underarm fold. If you only apply where you see hair, you're leaving active bacteria uncovered.
Let it absorb for 30-60 seconds before dressing. This prevents transfer to clothing and gives the active ingredients time to bond with your skin.
Finding Your Serving Size
Everyone's bacterial population is different. A pea-sized amount works for most people, but you may need more or less depending on your body.
If you're not getting full-day coverage, increase the amount slightly. Most people dial in their ideal serving size within 3-5 uses.
If the product feels heavy or is transferring to clothes, you're using too much. Reduce the amount and focus on massaging it in more thoroughly.
The active ingredients in Déodorant N°1, silver and zinc oxide, work through ion release. More product means more ions available over a longer period. The dose that works is the dose that matches your bacterial load.
Application Tips for Best Results
Apply to clean skin only, with nothing layered underneath. Do not apply over lotions, body butter, moisturizers, or other skincare products. These products contain emulsifiers that can interfere with the formula's antibacterial mechanism and cause it to wash off in sweat.
If you have underarm hair, you'll need a bit more product and more deliberate application. Hair traps the formula before it reaches skin. Apply in circular motions for about 30 seconds to work the product through to the skin surface, then finish with a few sweeping rubs to spread it evenly. Hair is porous and will absorb some product, so what's on the hair won't protect you. What's on the skin will.
Trimming or shaving is not required, but it does make application easier and reduces product waste. If you choose to shave, the formula is gentle enough to apply immediately after, with no stinging or irritation.
Use your fingers to apply. This gives you control over coverage and pressure. Wash your hands after application.
What to Expect
Day 1-3: You may need to experiment with the right amount. Start generous and adjust downward.
Week 1-2: If you're switching from an aluminum-based antiperspirant, your body may go through an adjustment period. This is normal. Antiperspirants alter your underarm microbiome, and when you stop using them, bacterial populations temporarily spike as your skin rebalances. This is not the deodorant failing. It's your body recalibrating. This phase typically lasts 2-4 weeks. During this time, you may want to apply twice daily (morning and midday) until your skin stabilizes.
Week 3+: Once your microbiome has settled, a single morning application should provide all-day coverage for most people.
If It Stops Working (Deodorant Fatigue)
If Déodorant N°1 worked well for weeks or months and then seems to lose effectiveness, you may be experiencing deodorant fatigue. This happens when dead skin cells accumulate on the surface, preventing the product from making full contact with live skin. The active ingredients reach saturation against the dead cell layer instead of working on the bacteria underneath.
The fix: Exfoliate your underarms once or twice a month using a chemical exfoliant (AHA, BHA, or PHA peel). This removes the dead cell layer and product buildup, restoring full contact between the deodorant and your skin. Avoid physical scrubs, which can cause micro-tears and irritation. After exfoliating, apply the deodorant as usual.
Factors That Affect Performance
Diet. Certain foods (garlic, onion, cruciferous vegetables, heavy spice, red meat, alcohol) can change sweat composition and increase bacterial activity. If you notice reduced coverage after dietary changes, it's temporary.
Hormones. Menstruation, pregnancy, menopause, perimenopause, and puberty all affect sweat composition and bacterial density. During hormonal shifts, you may need a slightly larger serving size.
Medication. Some medications (particularly antibiotics) alter the skin microbiome. If you've recently started or stopped a medication and notice a change in coverage, give your body a few weeks to adjust.
Stress. Apocrine glands (the sweat glands in your underarms) are activated by stress, not just heat. Stress sweat has a different composition and feeds bacteria more aggressively. On high-stress days, a midday reapplication may help.
Clothing. Synthetic fabrics like polyester, nylon, and spandex trap moisture and create bacterial breeding grounds. If you notice odor on your shirt but your skin smells clean, the issue is the fabric, not the deodorant. Breathable fabrics (cotton, merino wool, bamboo) perform significantly better.
Heat and activity. The formula was designed for active use, but extreme and prolonged heat exposure can soften the oil-based formula and increase sweat volume, both of which can reduce coverage duration. For intense training sessions or extended outdoor activity in high heat, a pre-activity application is recommended.
Storage
Store at room temperature in a cool, dry place. Avoid leaving the jar in direct sunlight, in a hot car, or near heat sources. The formula contains tocopherol (vitamin E) as a natural preservative, which is sensitive to sustained heat. The product is best used within 6 months of opening.
Texture and consistency may vary slightly between batches or with temperature changes. This is normal for a formula without synthetic stabilizers. Performance is not affected.
What This Product Does Not Do
Déodorant N°1 is a deodorant, not an antiperspirant. It neutralizes odor-causing bacteria and absorbs odor molecules. It does not block your sweat glands or prevent sweating. Sweating is a natural and important bodily function. You will still sweat. You just won't smell.