Skin care

Gua Sha: The scientific evidence behind its effectiveness

Mei | Published on April 29, 2026 | 4 min read

Long considered a simple traditional medicine practice, gua sha is now attracting increasing interest from the international scientific community. Through biometric analyses and rigorous clinical studies, researchers are attempting to understand the biological mechanisms that explain the observed skin transformations. Here is a summary of the latest scientific data available on this technique.

Key points to remember

Gua sha is not just an ancient beauty ritual, its effectiveness on microcirculation is now proven by biometric measurements.
The key figure: a study demonstrates that the technique increases surface microcirculation by 400% from the first pass.
Recent research suggests a systemic effect, including an anti-inflammatory response and immune stimulation (HO-1).
The verdict: science validates the use of gua sha for tissue oxygenation and the reduction of musculoskeletal tension.

A 400% increase in microcirculation

One of the most significant studies for our field is the one conducted by Nielsen's team in 2007. Using laser Doppler imaging, the researchers measured blood flow before and after a gua sha session.

The figures: the results showed an immediate and dramatic increase in microcirculation, multiplied by four (i.e. 400%) during the minutes following the massage.
The biological impact: this massive blood flow allows for better oxygenation of skin cells and accelerated removal of metabolic toxins.
Duration of effect: although the peak is immediate, a significant improvement in circulation persists for hours after treatment.

Systemic and anti-inflammatory effects

Beyond its simple mechanical surface action, recent meta-analyses highlight deeper biological effects. Gua sha appears to trigger a protective immune response within the body.

Research indicates that the technique stimulates the expression of the heme oxygenase-1 (HO-1) enzyme. This enzyme plays a crucial role in protecting cells against oxidative stress and possesses powerful anti-inflammatory properties. This explains why gua sha massage not only improves the appearance of the skin but also contributes to an overall reduction in tissue inflammation.

Comparative analysis: science vs tradition

Current data makes it possible to bridge the gap between ancestral concepts and modern biology, thus validating millennia of practice.

Traditional concept	Scientific equivalent	Observed effect
Release the "Qi"	Activation of blood microcirculation	Brighter, more oxygenated complexion
Heat removal	Anti-inflammatory response (HO-1)	Reduction of redness and tension
Unblock the meridians	Fascial and muscle release	Smoothing of expression lines
Drain	Stimulation of the lymphatic system	Reduction of puffiness and swelling

Conclusion: a practice validated by meta-analyses

Meta-analyses combining several clinical trials confirm that gua sha has real efficacy not only in aesthetics, but also in managing muscle tension and chronic pain. By combining surface mechanical action with a deep biological response, this tool is establishing itself as an essential part of modern skin health, validated by scientific data.

Sources and scientific references:

Nielsen A., et al. (2007). The effect of Gua Sha treatment on the microcirculation of surface tissue: a pilot study in healthy subjects. PubMed #17905355.
Clinical study on enzyme expression. (2026). Recent advances in scraping therapy and heme oxygenase-1 induction. PubMed No. 40439289.
Meta-analysis on Gua Sha treatment. Synthesis of randomized clinical trials and impact on pain management. Wikipedia – Meta-analysis.