What is rosehip oil in skincare?
Rosehip oil is cold-pressed from the seeds and fruit of Rosa canina or Rosa rubiginosa – the hip left behind after a rose has flowered. It should not be confused with rose oil, which is distilled from petals and is a fragrance ingredient.
It is rich in linoleic and linolenic acid, vitamin E, and naturally occurring trans-retinoic acid in trace amounts. It has a light, dry feel and a faint earthy scent, and reviews of rosehip-based dermatological products document antioxidant, anti-inflammatory and regenerative activity.
What skin concerns does rosehip oil treat?
It suits dry, dehydrated and mature skin, and its essential fatty acids help calm eczema and general irritation. The vitamin A compounds give it a mild resurfacing effect on tone and texture without retinoid-level irritation.
Its best-documented use is repair: experimental work shows rosehip oil promotes excisional wound healing, which underpins its popularity for scars, stretch marks and post-acne marks.
What ingredients are best paired with rosehip oil?
Layer it over hyaluronic acid or a hydrating serum, and alongside ceramides and squalane for a complete barrier routine. It pairs well with vitamin C for brightening.
Because it already contains vitamin A compounds, introduce it slowly if you are also using a retinoid. Its high linoleic content makes it a better choice for oily skin than most oils, but it oxidises quickly – buy small, opaque bottles and refrigerate. Take our Skin Quiz.
What is cystic acne?
Cystic acne is the most severe form of inflammatory acne. Instead of surface pimples, it produces deep, tender nodules and fluid-filled cysts that sit under the skin, often without ever coming to a head.
It happens when a blocked follicle ruptures deep in the dermis and spills sebum, keratin and bacteria into surrounding tissue, triggering a strong immune inflammatory response. Because the damage is deep, cystic acne is the type most likely to scar.
What causes cystic acne?
The same four factors behind all acne, amplified: excess sebum, abnormal shedding inside the follicle, overgrowth of Cutibacterium acnes, and inflammation. Androgens drive sebum production, which is why cystic acne often tracks with hormonal cycles, PCOS or puberty.
Genetics strongly influence severity, and stress, high-glycaemic diets, occlusive products and picking at lesions all make it worse. Squeezing a cyst pushes the contents deeper and reliably increases scarring.
What ingredients are best for cystic acne?
Cystic acne genuinely warrants a dermatologist – oral treatment is often needed. Alongside that, topical retinoids are the most useful over-the-counter active, because they work on the plug before it ruptures.
Benzoyl peroxide reduces bacterial load, azelaic acid calms inflammation and post-acne marks, and niacinamide helps redness without irritation. Keep the rest of the routine gentle and barrier-focused – harsh scrubs and drying alcohol make deep lesions angrier. Take our Skin Quiz.
