Lemon water: its benefits for the skin.

Lemon hydrosol also has an anti-inflammatory action. The linalool in its composition enables it to promote the synthesis of HSP70 proteins (Heat Shock Protein). These proteins ensure the correct conformation of proteins found in the body's cells and help them to protect themselves from external stresses (heat, heavy metals...), which could potentially cause inflammatory phenomena.

Furthermore, lemon water contains geranial. A study has shown that this molecule inhibits the activity of NLRP3, a complex inflammasome that triggers an inflammatory signalling pathway. It notably increases the synthesis of interleukin-1 (IL-1) and interleukin-4 (IL-4), which are pro-inflammatory cytokines. Therefore, the application of lemon hydrosol is beneficial for easing pain and aiding certain wounds to heal.

Lemon water is often attributed with several beneficial properties for those with oily skin. Some sources indeed claim that this ingredient possesses sebum-regulating properties , and that it could help to tighten pores and refine skin texture. Furthermore, lemon hydrosol is said to have a purifying action on skin imperfections. However, it is important to note that to date, no scientific study has demonstrated that the application of lemon hydrosol has visible beneficial effects on oily skin.

While the brightening and illuminating action of lemon water has not been directly evidenced in scientific studies, it is true that this ingredient contains vitamin C, a compound whose depigmenting effect has been demonstrated. Vitamin C is capable of preventing melanogenesis by inhibiting tyrosinase, an enzyme that facilitates the conversion of the amino acid tyrosine into melanin. The latter is a skin pigment responsible for its colouration. The amount of vitamin C in pure lemon hydrosol is nevertheless quite low and it may be necessary to combine it with a treatment containing more vitamin C to achieve results.

Typology has incorporated thelemon hydrosol (INCI name: Citrus Limon (Lemon) Fruit Water) into two treatments, where it works in synergy with several active ingredients.

• The hyperpigmentation serum is a treatment that contains lemon hydrosol and is also concentrated in alpha-arbutin, a brightening active ingredient. Daily application of this serum helps to reduce the appearance of brown spots and delay their onset.

• The antioxidant face cream contains lemon extract combined with a high percentage of vitamin C (5%) (INCI name: Sodium Ascorbyl Phosphate), and helps to combat oxidation phenomena and even out the complexion.