--- title: "DIY Pre-Shave Oil: What's Actually in It (and a Simple Recipe)" description: "A simple DIY pre-shave oil recipe and what's really in a premium bottle, usually just carrier oils like castor, grapeseed and squalane, plus how to use it." url: https://whollykaw.mom/learn/diy-pre-shave-oil published: 2026-06-18T12:00:00Z updated: 2026-09-01 keywords: ["diy pre shave oil", "homemade pre shave oil", "pre shave oil recipe", "what is in pre shave oil", "make your own pre shave oil"] author: "Sri" site: WhollyKaw --- # How do you make your own pre-shave oil? *A simple DIY pre-shave oil recipe and what's really in a premium bottle, usually just carrier oils like castor, grapeseed and squalane, plus how to use it.* Here's the open secret: **most pre-shave oils are simple blends of common carrier oils**, often castor oil for slip plus a lighter oil, sometimes a few drops of essential oil for scent. That's why a $35 bottle can feel hard to justify. You can mix a comparable one at home in minutes. Here's what's in it and a basic recipe. ## What's actually in pre-shave oil? Read the labels and you'll see the same building blocks repeat: - **Castor oil**: thick and slick; the “glide” ingredient in many pre-shaves. - **A light carrier oil**: grapeseed, sunflower, jojoba, or squalane to thin it out and absorb cleaner. - **Sometimes essential oil**. A few drops for scent (e.g. sandalwood, tea tree). That's usually the whole formula. It's not exotic chemistry, which is the point: you're often paying for branding, not rare ingredients. ## A simple DIY pre-shave oil recipe A common, easy starting blend: - **1 part castor oil** (slip) - **3 parts light oil**: grapeseed, jojoba, or squalane (absorbs cleaner, less greasy) - **Optional:** 2-4 drops of a skin-safe essential oil per ounce, for scent Combine in a small dropper bottle, shake, and adjust the ratio, more castor for more slip, more light oil for a lighter feel. Patch-test any essential oil first if your skin is reactive. ## DIY oil vs a glycerin pre-shave serum One thing you *can't* easily DIY is a **glycerin pre-shave serum**. Oils are occlusive. They sit on the surface. Glycerin is a humectant that pulls in water for a lighter, non-greasy slickness, and turning it into a stable serum takes proper formulation, not a kitchen mix. So if you want the oily route, DIY is cheap and easy; if you want the lighter humectant feel, a ready-made glycerin serum is the practical option. See [what glycerin does](/learn/glycerin-in-shaving-soap) and [do you need pre-shave oil?](/learn/do-you-need-pre-shave-oil) ## How do you use it? 1. Shave after a shower or warm the face. 2. Massage a few drops into damp skin. 3. Lather over the top and shave with light pressure. A little goes a long way, too much fights the lather. And remember: a slick soap already does most of this job, so a pre-shave (DIY or bought) is an optional booster. For the soap, see [best artisan shaving soap](/learn/best-artisan-shaving-soap-brands). ## Which carrier oils work best (and which to skip) Any pre-shave oil is just carrier oils, so the blend you pick decides how it feels. A few common choices and how they behave: - **Castor**: the slip workhorse; thick and tacky, so it's used in small proportion. - **Jojoba**: technically a liquid wax; light, stable, slow to oxidise, and generally rated low on the comedogenic scale. - **Squalane**: very light, near-odourless, cosmetically elegant and shelf-stable; the “premium” thinner. - **Grapeseed / sunflower**: cheap and light, but higher in polyunsaturated fats, so they oxidise (go rancid) faster. - **Sweet almond / argan**: medium-weight, pleasant glide. - **Fractionated coconut**: light and stable, though some people find coconut-derived oils sit heavy. “Comedogenic” ratings describe a cosmetic-science tendency measured in lab and patch settings, not a guarantee for your skin, they're a rule of thumb for picking a lighter blend, not a medical claim. ## What a DIY oil actually costs vs a bought bottle This is where DIY makes sense. A bottle of jojoba or squalane and a small bottle of castor oil runs roughly the price of one or two premium pre-shaves, but yields many ounces of blend, often a per-ounce cost in the low single digits versus $25-$35 for a boutique 1-2 oz bottle. You're mostly paying a brand for a formula you can mix in five minutes. What a bought product buys you is convenience, consistent scent, and a tested shelf life. ## How long does DIY pre-shave oil last? Homemade blends have no preservatives, so shelf life is set by the oils. Stable oils (jojoba, squalane, fractionated coconut) keep many months; lighter polyunsaturated oils (grapeseed, sunflower) can turn in a few. To keep a batch fresh: mix small amounts, store in a dark glass dropper bottle away from heat and light, and toss it if it smells sharp, “crayon-like” or off: that's oxidation. A drop of vitamin E oil can slow it slightly. ## Common DIY pre-shave mistakes - **Too much oil.** A heavy film fights your lather and makes the razor skip. A few drops is the whole dose. - **All castor, no thinner.** Pure castor is sticky and hard to rinse; cut it with a light oil. - **Overdoing essential oils.** A few drops per ounce is plenty; more is a common cause of irritation, so patch-test first. - **Big batches that go rancid.** Mix little and often. About WhollyKaw. WhollyKaw makes small-batch grooming products, including a glycerin pre-shave serum and a squalane pre-shave oil. This is general grooming information, not medical advice; patch-test homemade blends if your skin is reactive. ## Frequently asked questions ### What is actually in pre-shave oil? Usually just carrier oils: castor oil for slip plus a lighter oil like grapeseed, jojoba or squalane, and sometimes a few drops of essential oil for scent. It's rarely exotic chemistry, which is why a premium bottle can be hard to justify, you're often paying for branding. ### How do you make DIY pre-shave oil? A simple blend is 1 part castor oil (for slip) to 3 parts light oil (grapeseed, jojoba or squalane for a cleaner, less greasy feel), with an optional 2-4 drops of skin-safe essential oil per ounce for scent. Combine in a dropper bottle, shake, and adjust the ratio to taste. Patch-test essential oils if your skin is reactive. ### Can you DIY a glycerin pre-shave serum? Not easily. Oils are occlusive and simple to blend, but glycerin is a humectant that needs proper formulation to become a stable, non-greasy serum. If you want the oily route, DIY is cheap and easy; if you want the lighter humectant slickness, a ready-made glycerin serum is the practical choice. ### How do you use pre-shave oil? Shave after a shower or warm the face, massage a few drops into damp skin, then lather over the top and shave with light pressure. Use only a little, too much fights the lather. Remember a slick soap already does most of this, so pre-shave is an optional booster. ### Can I use coconut oil as a pre-shave oil? You can, but plain coconut oil is solid at room temperature and sits heavy on the face. A **fractionated** (liquid) coconut oil, or a lighter oil like jojoba or squalane, behaves better as a pre-shave. Skin reacts differently person to person, so patch-test first. ### How much DIY pre-shave oil should I use? A few drops for the whole shave area is plenty. Massage it into damp skin, then lather over the top. Too much oil fights the lather and makes the blade skip. A little goes a long way. ### Does DIY pre-shave oil work as well as store-bought? For a plain oil-based pre-shave, a home blend can perform comparably. The ingredients are the same common carrier oils. What you *can't* easily replicate at home is a stable **glycerin (humectant) serum**, which needs proper formulation rather than a kitchen mix.