What you put on before the razor touches your skin decides how smoothly the blade moves. On the bikini line, where coarse hair grows over thin, curved skin, that first layer matters more than almost anywhere else you shave.
This article compares the usual choices, pre-shave oil, shaving cream, gel, soap and nothing at all, and explains how to use an oil if you pick one. Shaving technique, the direction of the stroke and how to deal with a bump that's already there are covered in our article on razor bumps on the bikini line, so we won't go over them again here.
In this article
- Why the first layer matters on the bikini line
- What a pre-shave oil does
- Oil, cream, gel, soap or nothing: the comparison
- How to use a pre-shave oil
- Patch test first
- Who doesn't need a pre-shave oil
- Frequently asked questions
Why the first layer matters on the bikini line
A razor needs two things to cut cleanly: hair that's soft enough to cut without tugging, and a surface slick enough that the blade slides instead of dragging. Without them, the blade catches, pulls at hair and scrapes the top layer of skin.
Cleveland Clinic lists dry shaving, meaning shaving without any water, soap or shaving cream or gel, as a cause of razor burn, along with a dull blade, shaving too fast and shaving against the direction the hair grows. It notes that razor burn can affect the pubic area and usually shows up within minutes of shaving.
The bikini line also gets cut more than people expect. A study of US emergency department visits for injuries from pubic hair grooming found that shaving razors were involved in 83% of the injuries, that cuts were the most common type, and that the external female genitals were the most common site. Most were minor, but a razor that glides has less chance to catch.
What a pre-shave oil does
A pre-shave oil is a thin layer of plant oils you massage into the skin and hair before you shave. It does two jobs. It helps soften the hair so the blade cuts it rather than pulling it, and it leaves a slick surface the razor glides over. Because it doesn't foam, you can see exactly where you're shaving, which helps on a curved area you're looking at from above.
Our pre-shave oil, Base, is made in Montréal from castor oil, sweet almond oil, unroasted sesame oil, avocado oil, fractionated coconut oil, hemp seed oil, vitamin E and balsam fir essential oil. Castor oil is there to soften hair and give the blade a smooth surface. Base helps the blade glide, reduces tugging and cushions the skin, and it's non-comedogenic, meaning it's formulated not to clog pores. It has no fragrance; the balsam fir is an essential oil listed as an ingredient.
One buyer wrote to us in French: « j'ai beaucoup moins d'irritation depuis que je l'utilise. » (C., May 2026), which means they've had much less irritation since they started using it. That's one person's experience, and skin varies a lot, so take it as that and nothing more.
Oil, cream, gel, soap or nothing: the comparison
The American Academy of Dermatology's standard advice is to wet your skin and hair first, then apply a shaving cream or gel, and to choose one labelled for sensitive skin if yours is dry or sensitive. A pre-shave oil does the same job by a different route. Each option has a place.
| What you put on | What it does | Good for | Watch out for |
|---|---|---|---|
| Pre-shave oil | Softens hair, leaves a slick layer the blade glides over | Coarse hair, a clear view of where you're shaving, skin that dislikes foam | Too much can clog the razor; patch test any plant oil |
| Shaving cream | A cushioning foam over wet hair | People used to a lather; larger areas like legs | Fragrance in many formulas; foam hides the skin |
| Shaving gel | A clear or foaming gel over wet hair | Seeing a little more than with cream | Fragrance and other extras on the label |
| Soap | Some slip while it's wet | Better than nothing in a pinch | Dries out as you shave; strips skin, see our razor bump article |
| Nothing | No glide at all | Nobody, with a blade | A known cause of drag, tugging and razor burn |
Two notes on the table. A cream or gel works best on wet hair, so if you use one, apply it right after a warm shower. And if your cream or gel says "fragrance-free", check the full list too, because a long list gives sensitive skin more chances to react.
Some people combine methods: a few drops of oil first, then a thin layer of cream or gel on top. That's fine if you like the feel. On the bikini line, simple usually works better, because you can see what you're doing.
How to use a pre-shave oil
These steps follow the Base label, with AAD's general shaving tips built in.
- Shower first, or wet the area with warm water for a few minutes. Warm water softens hair, and AAD suggests shaving right after a shower.
- Pat the skin until it's dry or only slightly damp. Base goes on dry or slightly damp skin.
- Put a few drops on your fingertips and massage them into the skin and hair. A few drops is enough for the bikini line.
- Shave as usual, with light strokes in the direction the hair grows.
- Rinse the blade after each stroke, as AAD suggests, so hair and oil don't build up between the blades.
- No rinse needed for the skin. Base is made to stay on. Pat away any excess with a soft towel.
Base is for the outside of the body only: face, body and intimate areas, external. Keep it on the skin of the bikini line and the outside of the genitals, never inside.
A sharp blade matters as much as anything you put on. AAD suggests changing the blade or throwing away a disposable razor after 5 to 7 shaves.
If you're also looking for something for afterward, our guide to what to put on your bikini line after shaving covers the after-step.
Patch test first
Any product made from plant oils can bother someone, and the bikini line is a bad place to find out. The Base page asks you to patch test before you use it.
DermNet, the dermatology reference, describes a home method called a repeat open application test: apply the product twice a day to a small area of forearm skin for 5 to 10 days. If there's no redness or swelling at the end, an allergy to that product is unlikely.
Two notes on Base in particular. Sweet almond oil comes from a nut, so if you have a nut allergy, ask your doctor before you try it. And balsam fir essential oil is a plant extract, so anyone who has reacted to essential oils before should test with extra care.
Who doesn't need a pre-shave oil
A pre-shave oil is for blade shaving. Plenty of people don't need one.
If you trim instead of shave. An electric trimmer cuts hair above the skin and doesn't need glide.
If you wax or use another method. Our article on waxing versus shaving intimate skin compares the two.
If your current routine already works. If a cream or gel you like leaves your skin calm, there's no reason to change it.
If the skin is already broken or irritated. Don't shave over cuts, a rash or bumps that are still settling. Give the skin a break first.
Cleveland Clinic suggests calling a healthcare provider if razor burn doesn't go away within a few days, or if the area looks infected. Spreading redness, pus, a bump that grows or hurts more each day, or a fever are reasons to be seen rather than to keep shaving.
Base is $29 CAD ($22 USD) for 2 oz (59 mL), on the Base page. If you'd like the before and after steps together, the shaving ritual kit pairs Base with Après, our aftercare, for $54 CAD ($40 USD).
Frequently asked questions
Is pre-shave oil good for the bikini line?
It can be a good choice. A pre-shave oil softens coarse hair and leaves a slick layer, so the razor glides instead of tugging, and you can see where you're shaving because it doesn't foam. Use a few drops on dry or slightly damp skin, and patch test it on your forearm before first use.
Can I use pre-shave oil instead of shaving cream?
Yes. Both do the same job of helping the blade glide, by different routes. Cream cushions with foam, and oil leaves a thin slick layer you can see through. Some people use a few drops of oil under a thin layer of cream. What matters is that you never shave the bikini line dry.
Should I shave the bikini line wet or dry?
Wet first, then apply something that helps the blade glide. Warm water softens hair, which is why dermatologists suggest shaving right after a shower. Shaving dry, with no water, cream, gel or oil, is a known cause of razor burn. With a pre-shave oil, pat the skin until it's dry or only slightly damp.
Do I need to rinse off pre-shave oil after shaving?
Not with Base, which is made to stay on the skin. After you shave, pat away any excess with a soft towel. Rinse the razor after each stroke so oil and hair don't build up between the blades, and store the razor somewhere dry between shaves.
Can I use regular body oil before shaving?
You can, but check the label first. Many body oils contain fragrance, which is a common reason intimate skin reacts, and some are heavy enough to clog a razor. A pre-shave oil is made to help the blade glide and to stay light on the skin. Whatever you use, patch test it before the bikini line.
What's the best thing to put on before shaving the bikini line?
Whatever keeps the blade gliding without bothering your skin: a pre-shave oil, a shaving cream or a gel, ideally with no fragrance. Soap is better than nothing but dries out as you shave. Shaving with nothing at all is the one choice to avoid. Pair any of them with a sharp blade.
Sources
- Dry shaving and other causes of razor burn, and when to see a provider: Cleveland Clinic, Razor burn
- Razors and pubic hair grooming injuries: Glass and others, Urology, 2012, PubMed 23040729
- Wetting skin, shaving cream or gel, direction of growth and blade changes: American Academy of Dermatology, How to shave
- Repeat open application testing at home: DermNet, Patch tests
About this article
Written by the Peach & Cream team, based in Montréal. Published October 15, 2026. Last updated October 15, 2026. Product facts come from the Base product page and label; the buyer words are quoted exactly from a review on our store. This article is general information, not medical advice. Base does not treat or prevent any condition.