TL;DR
The pretty jade stone on your bathroom counter has a longer history than your feed suggests. Cao gio in Vietnamese tradition and gua sha in Chinese tradition are related practices using firm scraping over oiled skin, primarily for cold, congestion, and pain — not facial contouring. The aesthetic face version is a contemporary derivative, not the original practice.
When I first saw a friend’s grandmother demonstrate cao gio in a small Hanoi kitchen, the technique looked nothing like the gentle face-lifting routine I had seen on Instagram. She used the edge of a Tiger Balm jar lid, dipped in mentholated oil, and dragged firm parallel lines down her grandson’s back while he sat patiently with his shirt off. The skin behind the strokes turned red and slightly raised. He had been complaining about a cold. The redness, she explained, was the wind leaving the body. That is the actual tradition. The face roller is a different thing entirely.
Cao gio and gua sha are related, not identical
Cao gio translates roughly as “scraping wind.” In Vietnamese folk medicine, it is used to relieve cold-like symptoms, fever, headache, body aches, and what is described as trung gio, a folk diagnosis often translated as wind-induced illness. The practitioner applies a balm or oil (Tiger Balm, eucalyptus, sometimes camphor) and then scrapes the back, neck, and chest with the edge of a coin, a spoon, or a smooth-edged tool.
Gua sha (literally “scraping sand”) is the Chinese equivalent, with deep roots in Traditional Chinese Medicine. Both are body practices first. Both produce visible redness or petechiae by design. Both treat purposes that have nothing to do with facial contouring.
What the redness actually is
The marks left by traditional cao gio and gua sha are petechiae: small broken capillaries from the friction and pressure of the scraping. They typically last several days and fade. In Western dermatologic terms, they are minor traumatic ecchymoses.
The Journal of Alternative and Complementary Medicine has published several papers on gua sha, including a 2007 study showing increased microcirculation in the treated area and a reduction in patient-reported pain in subjects with musculoskeletal complaints. The mechanism is not mysterious. Mechanical scraping increases local blood flow, releases counterirritant nerve signals, and shifts inflammatory mediators in the tissue.
The aesthetic face version is recent
Facial gua sha is a modern derivative. The technique uses much lighter pressure than the traditional body practice, a smooth flat tool (usually a polished stone), and oil to glide rather than catch. The intent is lymphatic drainage, mild de-puffing, and the sensory pleasure of the routine. The petechiae you would expect from traditional gua sha do not appear because the pressure is much lighter.
I am not against the face version. It is pleasant. What I push back on is the framing. Calling the face version “ancient Chinese practice” without naming that it is a contemporary spin on a body therapy is the same kind of soft erasure that happens with many borrowed traditions.
The contrarian section: most face gua sha tutorials are wrong
The viral facial gua sha routines you see online — “upward strokes for lifting,” “jade rolls for collagen” — are not citing any traditional source. They are loosely adapted from face massage techniques across multiple cultures, repackaged with a Chinese aesthetic frame. The claim that the strokes “break down fascia” or “sculpt the jawline” is not supported by the actual TCM gua sha tradition or by clinical evidence.
What facial gua sha can plausibly do: redistribute mild post-sleep edema, provide a brief flushed glow from temporary vasodilation, act as a calming ritual. What it does not do on the evidence I have read: change bone structure, melt fat, build collagen, or lift permanently. If you enjoy the practice, keep it. The science on face massage overlaps with what gua sha is delivering, and the cultural specificity is mostly aesthetic packaging.
Engaging with the tradition more honestly
Learn the distinction between cao gio, gua sha, and facial gua sha. Use the right tool for the practice you are doing. Face gua sha needs a smooth flat stone with oil; body gua sha or cao gio uses firmer tools and stronger pressure and should be approached carefully. Recognize that the body version is therapeutic and produces marks; if your goal is calm skincare, you are doing the face derivative.
Vietnamese cao gio is a Vietnamese practice. Chinese gua sha is a Chinese practice. Facial gua sha is a Western beauty adaptation that draws aesthetic cues from both. All three can be respected without being collapsed. Apply your serum, apply your oil, and use the stone for two or three minutes as a finishing step. Do it because it feels good. The skin work is still being done by what you applied underneath, which is the principle behind our mindful skincare ritual. For more, see the slow skincare manifesto and the skincare how-to archive.
FAQ
Should the marks from traditional gua sha or cao gio be worrying? The petechiae are expected and fade in three to seven days. Persistent bruising, broken skin, or significant pain are not normal and should be evaluated.
Is facial gua sha safe daily? Yes, with light pressure and slip from an oil or serum. Heavy pressure on facial skin can cause broken capillaries.
Does jade or rose quartz matter? The stone is a tool, not a treatment. Choose one with smooth edges and a comfortable grip.
Can facial gua sha replace fillers or surgery? No. The effects are temporary and minor.
Is it safe in pregnancy? Facial gua sha is generally fine. Traditional cao gio and body gua sha should be discussed with a healthcare provider because of the deeper pressure.
Sources
Journal of Alternative and Complementary Medicine, 2007, microcirculation study on gua sha. PubMed-indexed reviews on gua sha mechanisms. Traditional Chinese Medicine reference texts. Anthropological literature on Vietnamese folk medicine practice.