How should cornflower hydrosol be applied?

Very well tolerated, cornflower hydrosol can be used around the eye contour to reduce signs of fatigue, such as dark circles and puffiness.

Its effect on puffiness is often attributed to its decongestant properties, which are in fact closely linked to the cold when it is kept in the refrigerator: the drop in temperature induces transient vasoconstriction and limits the build-up of fluids in the tissues. The hydrosol therefore mainly acts as a well‑tolerated aqueous medium that enhances this cooling effect. Regarding dark circles, whether vascular or pigmentary in origin, the scientific evidence supporting the effectiveness of cornflower hydrosol remains limited, although some findings suggest that it may reduce signs of fatigue, particularly swelling.

How can cornflower hydrosol be applied in practice to the eye contour area?

In practice, cornflower hydrosol is used in soaked compresses, applied to closed eyes for a few minutes. This approach is particularly relevant in the morning, when fluid retention is most visible, but it can also be carried out at the end of the day to soothe eyes tired from a day’s work, for example in front of a screen.

To maximise the effect on puffiness, it is recommended to keep the hydrosol in the refrigerator.

Cold is a key factor here: it acts directly on vessel diameter and capillary permeability, which helps to limit swelling. By inducing a transient vasoconstriction, it temporarily reduces local blood flow and slows the diffusion of fluids into the surrounding tissues. This reduction in capillary hydrostatic pressure thus helps to limit the formation or persistence of puffiness.

Cornflower hydrosol can also be applied without cotton wool, by taking two to three drops with clean fingers and then gently dabbing around the eye contour. This method helps to reduce friction, which is often too aggressive for this area where the skin is particularly thin.

Cornflower hydrosol can also be used on the entire face, where it is valued for its ability to soothe the skin, particularly when it is prone to diffuse redness, flushing or sensations of discomfort. It can also be used after sun exposure to reduce feelings of heat. Applied in the morning, it also provides an immediate refreshing effect, helpful for “waking up” the skin. Finally, cornflower hydrosol can be used as a light toning lotion: by moisturising the stratum corneum, it contributes to skin comfort and prepares the skin to receive subsequent treatments.

How to apply cornflower hydrosol to the face?

Very practically, cornflower hydrosol is applied to clean skin, ideally just after cleansing. It can be used with a cotton pad, gently sweeping it over the entire face, or applied directly with previously washed hands, placing a few drops and then pressing lightly on the skin to promote its distribution, without rubbing.

Advice : While cotton can be used to remove any remaining residue after cleansing, applying the product with the hands reduces friction and is therefore better suited to sensitive skin.

To enhance the refreshing effect provided by cornflower hydrosol, particularly in cases of sensations of heat or discomfort, the hydrosol can be stored in the refrigerator. As with the eye contour area, cold helps to soothe the skin by inducing slight superficial vasoconstriction. The hydrosol can be used on its own or as part of a more comprehensive routine. It is generally applied before a serum or cream, to skin that is still slightly damp, which can improve comfort and make subsequent skincare products easier to spread.

Cornflower hydrosol is a versatile treatment that can be used in the morning and/or evening, or occasionally as a mist during the day to provide a sensation of freshness to the skin.

Cornflower hydrosol can also be used on the hair and scalp, even though this use is less common than for the face or the eye contour area. Thanks to its aqueous nature and good tolerability, it can be applied in cases of a sensitive or uncomfortable scalp, in order to soothe sensations of tightness or mild itching. Its antimicrobial properties, although moderate, can also help to limit the proliferation of certain micro-organisms involved in the appearance of dandruff without acting directly on their underlying causes. Moreover, its slight bluish tint sometimes leads to it being attributed an “anti-yellowing” effect on light-coloured hair, particularly blonde or grey. However, this effect remains superficial and short-lived, linked to a slight optical deposit, without any lasting change in the colour of the hair fibre.

How should cornflower hydrosol be applied to the scalp and along the lengths of the hair?

For hair care, cornflower hydrosol can be used as a mist directly on the scalp, whether it is dry or damp. It is then recommended to spray it from a few centimetres away, and to gently massage with the fingertips to promote its distribution. It is also possible to place two to three drops on the hands, then apply them directly to the scalp by massaging.

As cornflower hydrosol is very light and predominantly aqueous, it does not need to be rinsed off.

On the lengths, the hydrosol may be used occasionally, as a light mist, to visually revive the hair’s radiance. However, due to its low active-compound content and the absence of conditioning agents, it has no detangling effect and provides no structuring benefit for the hair fibre.

• NGENOT L. & al. Anti-inflammatory and immunological effects of Centaurea cyanus flower-heads. Journal of Ethnopharmacology (1999).

• FAUCON M. Traité d'aromathérapie scientifique et médicale - Les hydrolats. Sang de la Terre (2018).