Rosehip oil has the strongest evidence for improving scar appearance, thanks to its natural vitamin A content, essential fatty acids, and low risk of clogging pores. But it’s not the only option, and some popular choices (vitamin E oil, coconut oil) can actually make things worse depending on your skin type. The right oil for you depends on your scar type, your skin, and how consistently you use it.
Rosehip Oil: The Strongest Candidate
Rosehip oil stands out because it works on scars through multiple pathways at once. It’s rich in carotenoids, including beta-carotene, lutein, and zeaxanthin, which your body converts into vitamin A. That matters because vitamin A drives collagen production, the protein your skin needs to rebuild and smooth out scar tissue. A pilot study published in the journal Cosmetics found that rosehip oil visibly reduced UV spots and pigmentation, which is directly relevant if your scars have left behind dark or discolored marks. A systematic review from the American Botanical Council found that rosehip oil reduced scar discoloration significantly after 12 weeks of use.
Beyond vitamin A, rosehip oil contains linoleic and linolenic acid, two fatty acids that support the skin’s protective barrier and help keep healing tissue hydrated. It also scores a 1 on the comedogenic scale (out of 5), meaning it’s highly unlikely to clog pores. That makes it a safe pick if your scars are from acne and you’re worried about triggering new breakouts.
Helichrysum Oil for Deeper Repair
Helichrysum italicum, sometimes called immortelle or everlasting flower oil, has a long history in traditional medicine for skin injuries. Lab research published in the International Journal of Molecular Sciences tested helichrysum extract on wounded skin cells and found it significantly increased collagen deposition compared to untreated cells. It also activated genes associated with tissue regeneration while suppressing a gene linked to cell aging. The active compounds, including chlorogenic acid and naringenin, have both anti-inflammatory and antioxidant properties.
Helichrysum is an essential oil, which means it needs to be diluted in a carrier oil (like rosehip or jojoba) before you put it on your skin. A few drops mixed into a carrier oil can be applied directly to the scar. It’s often recommended for atrophic scars, the sunken, pitted kind left behind by acne, because it promotes the type of tissue rebuilding that can help fill in depressed areas.
Coconut Oil: Good for Moisture, Bad for Acne-Prone Skin
Coconut oil does have real wound-healing properties. Nearly half its fat content is lauric acid, which has antimicrobial effects. Research has shown that topical virgin coconut oil promotes faster skin resurfacing, increases the formation of new blood vessels at wound sites, and boosts collagen synthesis and turnover. It also strengthens the skin’s outer barrier, which helps healing tissue retain moisture.
The catch: coconut oil scores a 4 out of 5 on the comedogenic scale, making it fairly likely to clog pores. If your scars are on your face, chest, or back, especially if you’re acne-prone, coconut oil can trap bacteria and trigger new breakouts. It’s a better choice for scars on the arms, legs, or torso where pore clogging is less of a concern.
Bio-Oil: A Popular Commercial Blend
Bio-Oil is one of the most widely marketed scar products, and it does have some clinical backing. A 2018 study of 80 people with flat (non-hypertrophic) scars found that Bio-Oil produced a 14 percent greater reduction in scarring compared to untreated skin. Among participants, 51 percent said their scars looked less pronounced, and 61 percent felt their overall skin appearance improved. On the other hand, 17 percent said they saw no benefit at all.
Bio-Oil is a blend of plant oils, vitamins, and a lightweight mineral oil base. It’s designed to absorb quickly without feeling greasy. If you prefer a ready-made product over mixing your own oils, it’s a reasonable option for flat surgical or injury scars and stretch marks. For raised or deeply pitted scars, results will be more limited.
Skip the Vitamin E Oil
Vitamin E is probably the most commonly recommended home remedy for scars, and the clinical evidence says it doesn’t work. A double-blinded study of 15 patients who had skin cancer surgery tested vitamin E ointment against plain moisturizer on fresh scars over four weeks. Topical vitamin E showed no improvement in scar appearance. In 90 percent of cases, it either did nothing or actually made the scar look worse. On top of that, 33 percent of patients developed contact dermatitis, an itchy, inflamed skin reaction, from the vitamin E. The researchers concluded that vitamin E should be discouraged for use on surgical scars.
If you’ve been using vitamin E and noticing redness or irritation around your scar, this may be why.
Matching the Oil to Your Scar Type
Not all scars respond to the same approach. The type of scar you have shapes which oil is worth trying.
- Atrophic (sunken) scars, like ice-pick or boxcar acne scars, benefit most from oils that stimulate collagen production to help fill in depressed tissue. Rosehip oil and helichrysum are the strongest choices here. That said, deep atrophic scars often need professional treatments like microneedling or laser therapy to see major improvement. Oils can complement those treatments but rarely resolve deep pitting on their own.
- Hypertrophic (raised) scars, which stay within the boundaries of the original wound, respond to anti-inflammatory oils that help regulate collagen. Chamomile and frankincense essential oils (diluted in a carrier) may help modulate collagen overproduction and reduce redness. For these scars, silicone gel sheets are also widely used. A meta-analysis of randomized controlled trials found that silicone gel was similarly effective to other topical treatments, including non-silicone options, for scar improvement.
- Flat, discolored scars from surgery, cuts, or burns are the best candidates for oil treatment. These scars are still remodeling, and consistent hydration with a nutrient-rich oil like rosehip can meaningfully improve texture and color over time.
How to Apply Oils for Best Results
Consistency matters more than which specific oil you choose. Scar tissue remodels slowly, and any topical treatment needs weeks to months of regular use before you’ll notice changes. A general guideline from MD Anderson Cancer Center recommends massaging scar tissue for at least 10 minutes, twice a day, for six months. You don’t need to follow that exact protocol, but the principle holds: brief, infrequent application won’t do much.
When applying oil to a scar, use gentle circular pressure with your fingertips. The massage itself helps break up collagen fibers in dense scar tissue and increases blood flow to the area, which supports healing independently of whatever oil you’re using. Start with clean, dry skin. A few drops of oil is enough for most scars. If you’re using an essential oil like helichrysum or frankincense, dilute it to about 2 to 3 percent concentration in a carrier oil (roughly 3 to 5 drops per tablespoon of carrier).
Wait until the wound is fully closed before applying any oil. Open or scabbed wounds can become irritated or infected with topical oils. Once the surface is sealed and any stitches are removed, you can begin. The earlier you start treating a closed scar, the more pliable the tissue still is, and the better your results are likely to be. Older scars can still improve, but expect a longer timeline and more modest changes.
Oils vs. Silicone Products
Silicone gels and sheets are the most studied scar treatments available over the counter. A systematic review comparing silicone gel to non-silicone topical treatments (including plant-based options) found no significant difference in overall scar improvement between the two. Silicone gel did outperform onion extract specifically for post-burn hypertrophic scars, but for general scar prevention after surgery, the outcomes were comparable.
This means oils are a reasonable alternative to silicone for many people, especially for flat or mildly raised scars. Silicone may still have an edge for burn scars or large hypertrophic scars, where the physical occlusion (covering and compressing the scar) plays an additional role. For everyday acne scars, minor surgical scars, or stretch marks, a well-chosen oil applied consistently can deliver similar results without the sticky feel of silicone sheets.