The short answer
Sugaring your underarms uses a paste of sugar, lemon juice, and water — applied with the direction of hair growth, then removed against it in a quick flick to pull hair from the root. The Cleveland Clinic describes sugaring as one of the older hair removal methods; the paste attaches to hair and dead skin cells without bonding to live skin, which tends to make it gentler on reactive areas like the underarm fold. Results typically last four to six weeks.
This guide covers what the underarm area requires specifically, the prep steps most beginners skip, technique, and when a sharp razor is the smarter call.
Before you start: two things to check
Hair length. The paste needs something to grip. Hair must be at least 1/8 inch (about 3mm) long for sugaring to work — roughly two to three weeks of growth after your last shave. Below that length, the paste slides off without catching.
Skin condition. Avoid sugaring over irritated, broken, or sunburned skin. If you're using a topical retinoid, pause it for three to four weeks first — DermNet NZ notes a contraindication between root-removal methods and retinoid use. If you develop persistent red bumps after a session, DermNet NZ identifies this as possible folliculitis; stop hair removal and speak to your GP before continuing.
Skin prep: what to do the day of
- Shower and cleanse. Wash the underarm area with a gentle, fragrance-free cleanser to remove deodorant residue, oils, and sweat. These create a barrier that stops the paste gripping the hair.
- Light exfoliation. A gentle scrub the morning of your session may help reduce ingrown hairs by clearing dead skin from around the follicle — the NHS recommends keeping follicle openings clear as a general ingrown-hair prevention measure.
- Dry completely. This is non-negotiable. Moisture breaks adhesion. Pat thoroughly and let the area air-dry for a few minutes.
- Skip deodorant. Don't apply deodorant before your session.
Step-by-step: how to sugar your underarms at home
1. Prepare your paste
Warm pre-made sugar paste gently — about 10–15 seconds in a microwave, then test on your inner wrist. It should feel warm, not hot. If it's too stiff, add a few drops of water and mix; if too thin, heat briefly again.
2. Raise your arm and trace the grain
Underarm hair grows in multiple directions — typically downward toward the centre and outward toward the edges. Before applying anything, look closely and trace which way the hair lies. You apply paste with that grain; you remove against it.
3. Apply paste with the hair growth direction
Using a spatula or your fingers, apply a thin, even layer in the direction of hair growth. Cover the area fully. Keep the layer consistent — too thick and removal becomes difficult; too thin and the paste won't grip.
4. Remove against the grain in a quick, flat flick
Holding the skin taut with your free hand, pull the paste off against the direction of hair growth in a brisk, flat motion close to the skin. Speed reduces discomfort. Work in small sections rather than attempting the whole underarm at once.
5. Catch missed hairs sparingly
Unlike wax, sugar paste can be reapplied to the same area to catch missed hairs without significant additional irritation. Keep reapplication minimal — repeated passes on already-removed skin cause redness.
Aftercare: the 48-hour window
The skin under your arms has just had hair removed from the root. Treat it accordingly.
First 24 hours:
- Avoid hot showers, baths, saunas, and anything that causes heavy sweating
- Skip deodorant for at least 12 hours; when you resume, choose a fragrance-free, alcohol-free option
- Wear loose, breathable clothing to reduce friction
- Apply a fragrance-free lotion or pure aloe vera gel to calm any redness
After 48 hours:
- Begin gentle exfoliation two to three times per week to help keep follicles clear and reduce the likelihood of ingrown hairs (NHS guidance)
- Keep the area moisturised with a fragrance-free product
Common mistakes that cause problems
Hair too short. The paste has nothing to grip. Wait until you have at least 1/8 inch of growth.
Damp skin. Even a trace of moisture prevents adhesion. Dry fully before you begin.
Slow removal. A tentative pull is more uncomfortable and less effective. Keep the motion fast and close to the skin.
Pulling at an angle. The paste should be removed parallel to the skin — not yanked outward — to avoid dragging the skin and increasing bruising risk.
Skipping aftercare. Follicles are temporarily open immediately after removal. Heat, sweat, and friction in that window raise the chance of irritation or folliculitis (DermNet NZ).
When to reach for a razor instead
Sugaring requires commitment: you must grow hair out before each session, and the prep and aftercare window takes planning. It works best for people who want longer intervals between removal and find frequent shaving causes chronic irritation under the arms.
But there's a strong case for keeping both in your routine. Between sugaring sessions — especially when you don't yet have enough growth — a well-designed razor with fresh blades is a gentler maintenance option than a degraded multi-blade cartridge. The Freya starter kit — a 5-blade vibrating razor on a subscription refill cadence — is built for this kind of everyday precision on sensitive skin.
For technique by body area — including underarms, legs, and bikini line — the shaving by body area guide covers prep, direction, and aftercare for each zone.
Quick comparison: sugaring vs. shaving underarms
| Sugaring | Shaving | |
|---|---|---|
| Hair removal depth | Root | Surface |
| Result duration | Typically 4–6 weeks | 1–3 days |
| Regrowth texture | Tends to soften over time | Blunt tip, feels coarser |
| Skin prep required | Yes — clean, dry, 1/8" growth minimum | Minimal |
| Irritation risk | Low if technique is correct | Moderate (razor burn, nicks) |
| Good for maintenance | No | Yes |
Written by the Freya Editorial Team. Sourced from the Cleveland Clinic, DermNet NZ, and the NHS. Published under CC BY 4.0 — free to share and adapt with attribution. Not a substitute for medical advice — consult a GP or dermatologist for persistent symptoms. Last updated June 2026.
Frequently Asked Questions
How long does underarm sugaring last?
Results typically last four to six weeks, depending on your individual hair growth cycle. Early sessions may feel shorter as hairs at different stages catch up to the same cycle.
Does sugaring underarms hurt?
There is some discomfort — hair is removed from the root. Most people find it more manageable than waxing because the paste works at room temperature and does not adhere to live skin. Speed on the removal stroke reduces discomfort significantly.
Can I sugar my underarms if I have sensitive skin?
Sugaring tends to be well-tolerated on sensitive skin because, unlike wax, the paste does not bond to live skin cells. That said, if your skin is currently irritated or inflamed, wait until it has fully settled. DermNet NZ notes that persistent red bumps after any hair removal session may be folliculitis — stop hair removal and consult your GP.
How often should I sugar my underarms?
Most people find a four-to-six-week cycle suits underarm hair, returning once they have at least 1/8 inch of regrowth. Sugaring before hair reaches that length yields poor adhesion and unnecessary irritation.
What should I avoid after underarm sugaring?
For the first 24 hours: hot showers, saunas, heavy exercise, deodorant, and tight clothing. After 48 hours, the NHS recommends gentle exfoliation two to three times a week to help keep follicles clear and reduce the chance of ingrown hairs.