From glossy Instagram reels to glossy foreheads, vitamin therapy has become the darling of beauty trends. It promises “instant glow” and “Rapunzel hair”, often in the form of IV drips or colourful capsules. But is it really a miracle elixir or just a very expensive placebo with better marketing? Dermatologists say it is a bit of both.Vitamin therapy acts as a protective shield for your cells. According to Dr Pravin Banodkar, Co-Founder and Lead Dermatologist at Skin Beyond Borders, our skin and hair face daily assaults from pollution and dust to stress and hormonal changes. Over time, these factors wear down cell health, slow growth, and accelerate signs of ageing. For skin, that means hyperpigmentation and dullness. For hair, it often means thinning and increased shedding.Vitamin therapy works by giving cells a protective boost through antioxidants, which fight off damage and keep things running smoothly. “It helps reverse some of the impact by preventing damage to hair cells and boosting repair processes,” Dr Banodkar explains.When Life Gets in the Way of NutritionIf your diet often looks like coffee for breakfast, desk snacks for lunch, and “something quick” for dinner, your skin and hair may already be paying the price. Dr Banodkar says that people with hectic routines often develop deficiencies in vitamins A, C, D, and essential micronutrients. Left unchecked, these gaps can shorten the hair growth cycle and weaken the skin’s barrier function.For such cases, vitamin therapy – oral, topical, or even targeted IV – can help fill the gaps. But if you already eat a balanced diet and nourish yourself consistently, “high-dose supplementation and IV drips offer no extra benefit,” he adds. Meaning, if your body is not missing it, megadoses will not suddenly help.MicronutrientsOne of the buzzier developments in dermatology is the “micronutrient concept”, feeding the hair bulb with targeted nutrients to prolong the growth phase (known as the anagen phase). Examples include:Vitamin A: Promotes skin cell turnover, reduces acneVitamin C: Boosts collagen production, brightens skinVitamin E: Antioxidant that aids repairBiotin (B7): Supports hair and nail strengthVitamin D: Crucial for follicle health and immune functionNiacin (B3): Improves skin texture and barrierUsed strategically, these can improve skin repair and help hair grow longer before shedding. But more is not always better.The Hype vs The Hard TruthDr Aseem Sharma, Director and Chief Dermatologist at Skin Saga Centre for Dermatology, points out that vitamin therapy has its place but not as a monthly beauty ritual for those without a medical need. “If you are genuinely deficient in D, B12, or iron, correcting that can transform skin and hair. But topping up levels that are already normal rarely produces dramatic results,” he says.Biotin, for example, is often marketed as the holy grail for hair growth. In reality, unless you are deficient, which is rare in healthy adults, it won’t magically transform thin hair into thick locks. Hair growth depends on protein intake, hormones, follicle health, and micronutrients working together.Antioxidants Vitami and glutathione can protect skin and hair from oxidative stress, the kind that speeds up ageing and damages follicles. But their benefits plateau once the body has enough. Overuse can even cause side effects, especially with fat-soluble vitamins that linger in the system. In other words, popping a week’s worth of supplements in one sitting won’t give you a week’s worth of glow; it might just give you an upset stomach.Should You Book That Vitamin Drip?Both Dr Banodkar and Dr Sharma agree: start with your diet. Focus on whole foods, adequate protein, and a rainbow of fruits and vegetables. Address specific deficiencies through tests, not guesswork. Save the IV drips for genuine medical needs, not pre-party touch-ups.Vitamin therapy can be a useful support act, especially for people with nutritional gaps, malabsorption issues, or recovery needs. But it is not the headliner. Your real glow comes from a healthy lifestyle, consistent skincare, and, yes, the occasional salad that is not just for show.