Can Injections Turn Grey Hair Black Again? Chinese Actress Guo Tong Thinks So

Chinese actress Guo Tong reveals she’s taking Vitamin B12 injections to naturally reverse grey hair caused by stress. The treatment shows potential but lacks full scientific backing and guaranteed results.

Post Published By: Karan Sharma
Updated : 12 September 2025, 2:49 PM IST
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New Delhi: Chinese actress Guo Tong (age 37) recently shared a video on Douyin (China's TikTok) in which she revealed that she is undergoing treatment to blacken her white hair with injections. After this revelation, she became a topic of discussion on social media.

Reason for white hair: Stress, not genetics

Guo Tong says that her white hair is not genetic (hereditary), but it is the result of a stressful lifestyle, emotional distress, and mental pressure. That is why she started the treatment.

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How is this treatment?

This is an injection course that claims to bring white hair back to its natural black color.

Guo Tong has completed 10 sessions so far

She said that some sessions were missed due to shooting and travel, so a big difference is not visible right now, but some changes have started appearing in the hair roots.

Started treatment for mental peace

Guo Tong said that he started this treatment so that he does not have to worry about gray hair every day. He did not reveal the cost of the treatment but said that it is necessary to reduce mental burden.

White Hair Problem

What injection is given in the treatment?

Adenosylcobalamin, which is a type of vitamin B12, is given in the treatment. This injection helps in increasing the production of melanin. Melanin gives color to hair, skin, and eyes.

How long does the course last?

This course lasts from 3 to 6 months. One injection is given every week. In some cases, exosomes are also used through micro-needling to reactivate the hair roots.

What is the opinion of experts?

Many experts believe that this treatment is not yet fully scientifically proven. Some people have seen results, but there is no guarantee that this treatment will work for everyone. This treatment can be expensive and give limited results.

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What to keep in mind before adopting it?

It is important to consult a certified doctor before adopting this treatment. This treatment may not be suitable or safe for everyone. If you too are troubled by gray hair and want to darken it naturally, then this treatment can be an option. But it takes patience, time, and money—and 100% results are not guaranteed.

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