Every few weeks one of the TikTok videos which promotes a wellness or diet fad goes viral by stating that it can cure all your hormonal and aesthetic beauty problems. Although a few of these actually have a scientific basis, others are merely marketing nonsense.
The following are the facts concerning seven different wellness trends which have recently been popular on TikTok.
1. “Cortisol Face” – A myth
The assertion is that stress results in an increased level of the stress hormone cortisol, which in turn causes the face to become puffy and rounded (“cortisol face”).
The facts are that endocrinologists have established this is mostly a myth, even though it is true that stress does have a negative effect on the entire body, including the skin. Although the so-called ‘moon face’ can actually result from Cushing’s syndrome (a rare condition caused by a tumor and leading to hyperadrenalinism), the stress hormone has only a minor connection with the kind of puffiness experienced every day. In most instances, ‘cortisol face’ is due to fluid retention, inadequate sleep, the retention of salt, and the state of the skin.
Conclusion: While it is true that the face can become puffy and rounded, cortisol levels are rarely to blame
2. Japanese (Interval) Walking – True
The statement is that taking three minutes of moderately intense walking followed by three minutes of slow walking is healthier and more beneficial than ordinary walking.
The facts: It is in fact one of those rare instances in which TikTok health trends are based on science. Recently, Japanese scientists carried out a trial, the results of which were published in the Mayo Clinic Proceedings. The trial showed that interval walking produced better results than regular walking when it came to improving the body’s aerobic fitness, blood pressure levels, leg muscle strength, and blood sugar control.
Conclusion: It is one of those rare habits on TikTok which is worth adopting.
3. Fibermaxxing – Mostly true
The assertion is that consuming foods high in fibre, for example broccoli, beans and lentils, during the course of the day leads to better digestion and a general improvement in health.
The fact is that dieticians do consider this to be good advice since most people following the typical Western diet take in considerably less fibre than is advised. Fibre has an effect on a number of metabolic processes in the body, including digestion, weight control and cholesterol levels. At the same time, it is also necessary not to overload the digestive system by eating too much fibre all at once, as this could result in bloating and gas.
Conclusion : there is another trend that is mostly true this time one concerning nutrition; even though it is not harmful, fibremaxxing is more of a dull healthy habit and doesn’t really match with the dramatic before-and-after type of content that is popular on TikTok.
4. Dry brushing as a method of ‘lymphatic drainage’ — mostly a myth.
The assertion is that when a dry brush with stiff bristles is used to massage the skin in an upward direction it helps to get rid of toxins, improves lymphatic drainage, and reduces the appearance of cellulite.
The facts are that it is in part true—although dry brushing does have an exfoliating effect on the skin and can make it appear smoother, the rest of the assertions are not supported by evidence. Most scientific studies indicate only a slight effectiveness in reducing fluid retention or cellulite. Additionally, manual lymphatic drainage is a particular medical treatment used for lymphedema (fluid retention resulting from damage to the lymphatic system) and demands specialized training.
Conclusion: This beauty routine has only a beneficial effect on superficial skin problems.
5. Collagen Supplements – Partly True.
The claim is that adding collagen peptides to one’s diet helps to counteract skin aging and enhance joint health.
The facts: The evidence in favour of this claim is at best only mixed. Although a large-scale review, published in September 2026, which looked at 113 studies involving nearly 8,000 participants, found that collagen supplements do seem to increase skin elasticity and hydration and reduce the symptoms of osteoarthritis, the effects were minor. The beneficial effects of collagen peptides were observed only when a daily dose of about 5 grams was taken consistently for at least three months. Furthermore, the review did not identify strong evidence for the supposed benefits of collagen regarding exercise performance, wrinkle reduction, and cardiometabolic health.
Conclusion : it is not a full hoax but has been greatly overestimated within the TikTok community.
6. Ice Baths – Partly True.
The assertion is that taking cold showers or ice baths regularly is a healthy method of improving the immune system, boosting energy levels, and enhancing mental health.
The facts are that it’s partly correct—although there is not nearly enough evidence to support the idea that taking regular cold plunges strengthens the immune system, reduces body fat, or decreases chronic inflammation, regular cold water immersion (CWI) has been found to help with recovery after exercise and to improve short-term mood and alertness as a result of a sharp rise in norepinephrine and dopamine. In fact, some studies have even found that carrying out CWI immediately after weightlifting can hinder muscle growth, meaning that ice baths are for athletes.
Conclusion : ice baths or cold showers are a safe method of improving your mood and helping with recovery after a workout.
7. The raw carrot salad for ‘hormone balance’ – A myth
The assertion is that eating a diet which is high in carrots (and other root vegetables) aids the body in getting rid of excess estrogen and in balancing the female hormones.
The facts: Registered dietitians have strongly refuted this claim. While there is no scientific evidence to show that a diet based on carrots offers benefits for hormone detox, the claim does rest on some true information. The high fibre content of carrots may help to balance oestrogen in women who have higher-than-normal levels of it, but it is very unlikely to have any significant effect in other cases. Should a woman suspect that her hormone levels are abnormal (for example, if she is experiencing severe PMS or PCOS symptoms), she should see an endocrinologist to find out about hormone therapy options. For the majority of women, a daily serving of raw carrot salad is a healthy snack and has only minor if any hormonal advantages.
Conclusion : it is a good idea to have a healthy and balanced diet, but a carrot salad will only be of any use if you have an excess of estrogen.
Summary
Of the seven TikTok trends that were examined, only two were entirely true, the others ranged from ‘mostly true’ to ‘based on partial facts’, and just one was completely unsubstantiated. On average, health trends grounded in science tend to involve a more systematic method when it comes to a particular aspect of well-being (for example, interval walking, which offers considerably greater metabolic benefits than regular walking). However, trends that claim to bring about substantial improvements to a particular system (such as the hormones or the skin) through minor changes (like taking supplements or making a few dietary adjustments) need to be subject to further research before being put into practice.
Medical Disclaimer
The article is provided for general informational use and must not be regarded as a replacement for advice from a medical professional. Should you have any concerns regarding your hormonal health or skin condition, you should get in touch with your doctor.