Rosehip Seed Oil (Rosa canina / Rosa rubiginosa)

Family: Rosaceae | Part Used: Seeds (cold pressed for oil) | Origin: Chile (primary commercial source); Europe and Asia

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Botanical Overview

Rosehip seed oil is cold-pressed from the seeds of wild rose bushes — primarily Rosa canina (dog rose) and Rosa rubiginosa (sweet briar) — after the rose hips (fruit) have been harvested. The oil has been used in Chilean folk medicine for centuries for wound healing and skin care. It gained international attention in the 1980s when Chilean researchers published studies on its remarkable effects on scar tissue and skin regeneration. Today it is one of the most popular and evidence-backed botanical skincare oils in the world.

Active Constituents

• Linoleic acid (omega-6, 35–45%): The primary fatty acid. Essential for skin barrier function and ceramide synthesis. Acne-prone skin is often deficient in linoleic acid; topical application helps normalize sebum composition.
• Alpha-linolenic acid (omega-3, 20–25%): Anti-inflammatory and skin barrier-supportive.
• Trans-retinoic acid and retinol precursors: Natural vitamin A compounds that support skin cell turnover, collagen synthesis, and reduction of hyperpigmentation. This is rosehip's most distinctive constituent — few other plant oils contain significant retinoid activity.
• Vitamin C: Antioxidant and collagen synthesis support.
• Lycopene and beta-carotene: Antioxidant carotenoids.

Clinical Evidence

• Scar Reduction: A 2015 RCT found rosehip seed oil significantly improved scar appearance, skin hydration, and skin tone over 12 weeks of daily application.
• Anti-aging: A 2015 study found daily rosehip powder supplementation significantly improved crow's feet wrinkles, skin moisture, and elasticity over 8 weeks.
• Hyperpigmentation: Retinoid activity supports skin cell turnover and reduction of melanin deposits.

How to Use

• Face serum: Apply 3–5 drops to clean skin morning and/or evening. Can be used alone or under moisturizer.
• Scar treatment: Apply directly to scar tissue twice daily for 12+ weeks for best results.
• Carrier oil: Use as a base for essential oil facial blends (1–2% essential oil concentration).

Shelf Life & Storage

Rosehip oil has a relatively short shelf life (6–12 months) due to its high polyunsaturated fatty acid content. Store in the refrigerator after opening and use within 6 months. Look for dark glass packaging to protect from light oxidation.

Safety

• Generally very well-tolerated; suitable for all skin types including sensitive
• Patch test recommended for reactive skin
• Avoid applying before sun exposure (retinoid activity increases photosensitivity)

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