When it comes to iconic visuals in K-pop, G-Dragon has always set his own standard. Recently, it was not a bold hairstyle or fashion choice that caught attention, but a surprisingly simple habit he says plays a role in keeping his hair thick and healthy.
On June 5, G-Dragon appeared on a YouTube variety show where he spoke casually with the hosts about his daily routine. When asked about his lifestyle habits, he revealed that he regularly drinks black soybeans brewed in water, describing it as something he consumes almost like tea.

As the conversation continued, he even opened his refrigerator and showed jars of black soybeans he keeps on hand. One of the hosts jokingly asked if that was the reason behind his noticeably full hair, prompting laughter and even more curiosity from viewers.
What started as a lighthearted moment quickly turned into a talking point among fans, many of whom began wondering if there was real science behind it.
Black soybeans have long been associated with scalp and hair care in East Asian dietary traditions. Nutritionally, they contain isoflavones, plant compounds that behave similarly to estrogen, a hormone known to support hair growth cycles.
These compounds may help reduce the activity of hormones linked to pattern hair loss while also supporting blood circulation in the scalp. Black soybeans are also rich in polyphenols, iron, lysine, unsaturated fatty acids, and vitamin E, nutrients that contribute to overall scalp health and the structure of hair fibers.
In simple terms, they can support the environment that helps hair grow stronger and healthier.

Despite the buzz, nutrition experts are clear about one thing. Drinking or eating black soybeans is not a treatment for hair loss that has already progressed. There is no verified evidence showing that soybeans can reverse hair loss or act as a medical cure.
Instead, their role is more supportive. When included consistently as part of a balanced diet, they may help maintain healthier hair and scalp conditions, but they should not be viewed as a miracle solution.
G-Dragon’s comment also highlights a broader point that specialists often emphasize. Hair health is closely tied to daily lifestyle choices. Since hair is made largely of keratin, a protein, diets that include enough protein are essential.
Foods such as nuts rich in vitamin E, olive oil and fish containing unsaturated fatty acids, and a generally balanced intake of nutrients all contribute to better scalp conditions. On the other hand, excessive alcohol, smoking, and diets high in saturated fats can negatively affect blood flow to the scalp and worsen hair concerns over time.
While black soybean water alone is unlikely to explain G-Dragon’s signature thick hair, his comment resonates because it reflects a long-term, consistent approach to self-care. Rather than relying on quick fixes, it is the accumulation of daily habits that often makes the most visible difference.
Sometimes, the most talked-about beauty secrets turn out to be the simplest ones.