Body oils and body serums: what is the difference

A body oil is mostly plant oils, with little or no water. It softens skin and helps hold in moisture that is already there, which is why it works best on skin that is still damp from the shower. A body serum is usually a lighter, more concentrated product built around one or two specific ingredients, such as an exfoliating acid, and it is used in smaller amounts. Put simply: oils are about comfort and moisture, serums are about a particular ingredient.

What a body oil does

Oils are emollients. They fill the small gaps between skin cells on the surface, which makes skin feel smoother, and they form a thin layer that slows water loss. They don't add water themselves, so timing matters. Applied to dry skin, an oil can feel slick. Applied to slightly damp skin, it spreads easily and seals in what's there.

That is exactly what the usage line on the JOSE Premium Body Oil says: "Apply after showering while skin is slightly damp. Massage gently until absorbed."

From Thailand, the 150ml pump bottle comes in three variants with different textures:

• Glow & Nourish, described as "a deep moisture body oil" with a soft floral scent
• Matcha Citrus, described as "a lightweight, dry-touch oil that absorbs quickly"
• Warm Vanilla, described as enriched with eight natural oils and "well suited for dry and dehydrated skin"

Across the range, the seller lists plant oils including sea buckthorn, macadamia, jojoba, sweet almond and sunflower seed. Customers with nut allergies should check the specific variant's pack, since sweet almond and macadamia are both nut oils.

What a body serum does

Body serums borrow the idea of a face serum: a thinner product with a higher focus on one ingredient. They are usually applied in a few drops, or mixed into a lotion, rather than slathered on.

The MIMI White Multi Alpha AHA White Body Serum is an example. It is a 30ml bottle described by the seller as an exfoliant containing alpha hydroxy acids, specifically lactic acid and citric acid. AHAs are well-established chemical exfoliants that loosen the outer layer of dead skin cells. The label suggests it as part of a nighttime routine.

Its usage line is: "Mix 2 – 3 drops of Mimi White AHA Body Serum with any lotion. It can also be used or applied directly to your skin."

Two things worth telling customers about any AHA product:

• AHAs can make skin more sensitive to the sun, so daytime sun protection on treated areas is sensible.
• Start slowly. If skin stings, reddens or peels, stop and ask a pharmacist.

Oils, serums, lotions: a quick comparison

Body oil. Mostly oil, little or no water. Best on damp skin. Strong on softness and that glossy look. Can feel rich on very hot days, though "dry-touch" oils are made to address that.

Body serum. Light texture, used in small amounts, built around a specific ingredient. Often layered under or mixed into a lotion.

Body lotion or cream. Water and oil blended together. Adds water and seals it in at the same time. The easiest all-rounder for most people.

Many people end up using two: a serum or wash with an active ingredient, then a lotion or oil to finish. The Boots 10X Niacinamide Shower Serum is a rinse-off version of that serum idea. Our article on shower serums and niacinamide body washes explains how rinse-off and leave-on products differ.

A note for clinics and care settings

Not every oil on a supplier's list is a cosmetic. The B.Braun Linovera Oil is a 50ml spray of hyperoxygenated fatty acids, and its label describes it as used "in the prevention and treatment of Stage I pressure ulcers". Its usage line refers to application "according to the treatment regimen by the health personnel". It belongs on a clinic, nursing or pharmacy shelf rather than next to fragranced body oils, and questions about using it should go to a nurse, doctor or pharmacist.

Shelf tips for retailers

• Keep body oils and serums in the body care section, not with massage or aromatherapy oils, unless the label says they are for that use.
• Pump bottles are easier for testers than open bottles. Wipe pumps regularly.
• Display oils with a simple card: "Use on damp skin after showering." It answers the question most customers have.
• Place AHA products next to sunscreens or with a reminder about sun protection.

Body oils also make sense in hotel and serviced apartment bathrooms, where a single pump bottle is easy to refill and looks good on a vanity.

Browse the bath and body category for the full range. If you want pricing or availability on the JOSE oils, the MIMI White serum or anything else here, add them to your enquiry list and we will reply with the details.