How to Shave Your Underarms with a Safety Razor: A Step-by-Step Guide for Smooth, Eco-Friendly Grooming

Shaving your underarms with a safety razor might sound intimidating at first, but it's actually one of the most effective ways to get a close, smooth shave while cutting down on plastic waste. Unlike multi-blade disposables that can tug and irritate sensitive armpit skin, a well-designed safety razor glides cleanly and reduces the chance of razor bumps. With a little practice, you can make underarm shaving a quick, comfortable part of your routine.
In this guide, we'll walk through exactly how to shave underarms with a safety razor—from prep to technique to aftercare. Whether you're new to safety razor underarm shaving or just looking to refine your method, these tips will help you get a smooth result without the drama. We'll also touch on why a Leaf razor is a great choice for body grooming thanks to its flexible head and comfortable grip.
Why Use a Safety Razor for Underarm Shaving?
Underarm skin is thin, sensitive, and curved—making it prone to nicks and irritation if you use the wrong tool. A safety razor uses a single blade that cuts at a precise angle, which means less tugging and fewer ingrown hairs compared to multi-blade cartridges. Plus, since you replace only the blade (not the whole handle), you generate far less plastic waste over time. For anyone looking to make their grooming routine more sustainable, safety razor underarm shaving is a natural fit.
The Leaf razor is especially well-suited for body grooming because its pivoting head follows the contour of your armpit, and the textured handle gives you a secure grip even with wet hands. You can also pair it with a shave oil or shave soap bar for extra glide. The result is a shave that's both eco-friendly and skin-friendly.

- Single blade reduces irritation and ingrown hairs.
- Reusable handle eliminates plastic cartridge waste.
- Pivoting head (like on the Original Leaf Razor) adapts to curves.
Prep Your Skin and Tools
Preparation is half the battle when you shave underarms with a safety razor. Start by wetting your underarms with warm water for at least two minutes—this softens the hair and opens pores. Apply a quality lubricant like shave oil or a rich shave soap bar to create a slick layer. Avoid using body wash or shampoo as a substitute; they don't provide enough glide and can clog the razor.
Make sure your razor is clean and loaded with a fresh blade. Dull blades cause tugging and increase the risk of nicks. If you're using a Leaf razor, check that the blade is seated evenly and the head is tightened securely. Having a Nick Block on hand is a smart idea in case you do get a small cut—it stops bleeding fast without stinging.
- Soak underarms in warm water for 2 minutes before lathering.
- Use a dedicated shaving lubricant—shave oil or shave soap bar works best.
- Always start with a sharp, clean blade.
Step-by-Step Shaving Technique
Stand in a well-lit area and raise one arm overhead to flatten the skin. Hold the safety razor at about a 30-degree angle to the skin—the same angle you'd use on your face. Use short, light strokes, letting the weight of the razor do the work. Shave in the direction of hair growth first (usually downward), then sideways, and only go against the grain if needed for extra smoothness. Rinse the blade after every couple of strokes to prevent buildup.
For the curved underside of the armpit, use the pivoting head of a Leaf razor to follow the contour naturally. Don't press hard; the razor's design is meant to glide. If you feel resistance, reapply lubricant rather than pushing harder. Take your time—rushing increases the chance of nicks. After finishing one underarm, repeat on the other side with the same gentle approach.
- Hold razor at 30° angle; use short, light strokes.
- Shave with the grain first, then across or against for closeness.
- Rinse blade frequently and re-lather as needed.
Aftercare for Smooth, Happy Skin
Once you're done shaving, rinse your underarms with cool water to close pores and remove any leftover product. Pat dry gently with a clean towel—don't rub, as that can irritate freshly shaved skin. Apply a fragrance-free moisturizer or aloe vera gel to soothe the area. Avoid applying deodorant or antiperspirant for at least an hour to allow your skin to recover.
Clean your razor thoroughly after each use to prevent bacteria buildup. For a Leaf razor, just rinse the head under warm water and let it air dry. Store it in a dry spot, like the Original Leaf Case, to protect the blade and keep it ready for next time. With consistent care, you'll enjoy smooth underarms and a longer-lasting razor.
- Rinse with cool water and pat dry.
- Moisturize with a gentle, unscented lotion.
- Skip deodorant for 1 hour post-shave.
- Clean and dry your razor after every use.
Shaving your underarms with a safety razor is a simple switch that pays off in smoother skin, fewer irritations, and less plastic waste. By prepping properly, using a light touch, and caring for your razor, you'll get great results every time. Whether you're using a Leaf razor or another safety razor, the key is patience and practice—soon it'll feel like second nature.