Is beef tallow good for your skin?
There is no evidence that beef tallow works for skin complaints such as acne or eczema. The ingredients are not without value, but for real skin problems you should seek advice from a doctor.
Beef tallow contains fatty acids, triglycerides and vitamins that could in theory be beneficial for your skin. Those individual components have been studied and may contribute to a healthy skin barrier, wound healing and the suppression of inflammation. However, that evidence applies to those substances on their own, not to beef tallow as a product.
On social media, particularly YouTube, Instagram and TikTok, many people make bold claims about beef tallow for acne, eczema and psoriasis. Scientific evidence for those claims is lacking to date. Most posts come from people without medical training and are linked to product sales, which makes them unreliable as a source of medical advice.
There are also safety considerations. Animal fats that are processed and stored at home or on a small scale carry a risk of bacterial contamination. Side effects cannot be ruled out, especially if hygiene during production or storage is inadequate.
In short: the ingredients in beef tallow are not without merit, but whether beef tallow as a whole works for skin complaints has not yet been studied. If you suffer from acne, eczema or psoriasis, there are treatments with a stronger evidence base. Discuss it with your general practitioner or dermatologist before trying something new.
This answer is based on two sources: a review of fats and oils in skin care and an analysis of social media posts about beef tallow. The evidence on the individual components (fatty acids, ceramides) is reasonably well supported, but specific clinical research into beef tallow as a skin product is entirely absent. There are no studies in humans that have tested the effect of beef tallow on skin complaints.
Does resveratrol in skin cream actually do anything?
Resveratrol in skin cream demonstrably reaches the skin and has antioxidant activity, but whether it produces any visible effect as the sole active ingredient has not yet been proven. Combination products show promising results, but anyone buying a cream with resveratrol should be aware that the evidence for resveratrol itself remains thin.
Does skin cycling actually work better for your skin?
Skin cycling as a protocol has not been scientifically tested, so no proven benefit can be attributed to it. Some of the ingredients it features, such as ceramide moisturisers and nicotinamide, do have solid evidence behind them individually.
What actually works against skin aging?
Using sunscreen daily is the best-supported way to slow skin ageing, supplemented by not smoking, moderate alcohol consumption and sufficient sleep. Cosmetic options such as thread lifts and honey in creams have a weaker or not yet sufficiently proven basis and call for a critical weighing of the risks.
Can using too much retinol actually damage your skin?
Too much retinol can irritate and damage your skin, but at a low dose and with a gradual build-up you can benefit from its skin-renewing effects. Start low, build up slowly, and consider bakuchiol if your skin reacts sensitively.
Does omega-3 from fish or flaxseed help give you better-looking skin?
Omega-3 from fish oil has the strongest evidence base for skin conditions involving inflammation, such as eczema or psoriasis, but results are mixed and no proven optimal dose exists. Flaxseed omega-3 has a weaker effect. If you want to try it for a skin complaint, discuss it with your doctor.
Which skincare actually works after forty?
A number of skincare ingredients have a proven effect after forty: tretinoin (on prescription) is the best-supported option, retinol and bakuchiol are accessible alternatives, and oral collagen peptides demonstrably improve skin elasticity.