Couperose, Rosacea: Can Safflower Oil Reduce Skin Redness?

The safflower oil is a vegetable oil extracted from the seeds of the safflower plant. Used in everything from cooking to painting to cosmetics, it presents itself as a fairly light orange liquid that emits a hazelnut fragrance. A safe natural ingredient, the safflower oil is suitable for sensitive skin and can also be used by individuals with oily skin. Regarding its composition, this vegetable oil primarily contains fatty acids responsible for its hydrating and nourishing benefits for the skin. It also contains phytosterols and several vitamins, active ingredients appreciated by those suffering from skin diseases due to their anti-inflammatory properties.

Dilation of blood vessels and rosacea: Can safflower oil help to reduce them?

If safflower oil is so often cited as a natural solution for rosacea, it's because of its richness in Vitamin K. Several studies conducted on this molecule have highlighted that it possesses vasoconstrictive properties. Vitamin K acts on different levels of the coagulation cascade and notably allows the activation of the Stuart-Prower factor, an enzyme promoting blood coagulation. The redness associated with rosacea is primarily due to an excessive dilation of blood vessels, hence Vitamin K and, by extension, safflower oil can prove useful in reducing them.

Furthermore, a clinical trial conducted in 2018 evaluated the effectiveness of a topical cream containing 1% vitamin K as part of a treatment for rosacea. The study involved 75 women diagnosed with erythematous type rosacea. They were divided into two groups: Group A consisted of 25 patients who applied a standard moisturizing cream for redness twice a day. Group B consisted of 50 patients who did the same with a 1% vitamin K topical cream. The patients in each group were evaluated after 4 and 8 weeks of treatment. Vasomotor flushes, non-transient erythema, telangiectasias, burning sensation, and dryness were among the factors measured. The results revealed that the average severity score on these various parameters had significantly decreased more in the individuals from Group B, highlighting the benefit of a topical treatment with vitamin K for patients with rosacea.

Safflower oil to reduce inflammation caused by rosacea?

As previously mentioned, safflower oil has proven anti-inflammatory effects. These are primarily due to the phytosterols it contains, compounds that inhibit NF-κB and AP-1 proteins, which are pro-inflammatory transcription factors. These factors modulate the expression of genes coding for inflammation proteins. By blocking these signaling pathways, phytosterols reduce the production of pro-inflammatory cytokines, which soothes and calms the skin by reducing redness and feelings of discomfort.

Safflower oil for skin reconstruction.

Safflower oil also contributes to the healing of the skin following inflammatory events. Its richness in fatty acids allows it to provide hydration to the skin, a key factor for its reconstruction. Moreover, the linoleic acid, which makes up more than 70% of its composition, is a precursor in the synthesis pathways of several mediators (thromboxanes, prostaglandins, and leukotrienes) that are highly active in neoangiogenesis and dermal regeneration.

Furthermore, the vitamin K found in safflower oil significantly increases the epithelialization process as well as the formation of fibroblasts, collagen fibers, and blood vessels. A double-blind study conducted over 14 days involving 63 people with wounds highlighted these effects. Each day, a portion of the participants applied a "standard" moisturizing cream, while another group used the same moisturizing cream to which 1% vitamin K had been added. At the end of the study, scientists observed a better healing in patients who applied the cream with vitamin K.

Note : Despite all the benefits of safflower oil, no studies have been conducted on individuals with rosacea, which should prompt us to remain cautious.