You’ve heard it your whole life: “Make sure you’re getting your vitamins.” But if someone asked you what Vitamin K actually does, or why your skin loves Vitamin C, could you explain it? Don’t worry: most people can’t. That’s exactly why we’re writing this.
We talk about vitamins all the time, but most of us never stop to ask what these nutrients are actually doing inside the body. Sure, we know we “need” them, but why? And what happens if we don’t get enough?
This blog breaks down what each major vitamin does, how they work to support your skin, brain, energy, and immunity, and why two in particular (Vitamin C and Vitamin E) are essential to building stronger skin from within.
Water-Soluble vs Fat-Soluble
First things first: not all vitamins work the same way.
Vitamins fall into two categories: water-soluble (B-complex and C) and fat-soluble (A, D, E, and K).
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Water-soluble vitamins dissolve in water, and your body doesn’t store them for long. That means you need a steady daily supply through food or supplements.
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Fat-soluble vitamins are stored in the body’s fat tissues and liver. They’re absorbed better when taken with fat-containing meals, and they hang around longer, so it’s easier to build up reserves (or go overboard).
Understanding this helps explain why some high quality vitamins are safe and useful every day (like C and B12), while others require a little more care or balance.
Vitamin A – Skin, Vision, Immunity
What it does:
Vitamin A is best known for supporting healthy vision, but it also plays a critical role in maintaining your immune system, aiding cell growth, and keeping your skin and mucous membranes in good shape.
Why it matters:
Your skin renews itself constantly, and Vitamin A supports the formation of new skin cells and the repair of damaged tissue. In skincare, its derivative retinol is prized for boosting cell turnover and reducing fine lines.
Where to get it:
Sweet potatoes, carrots, liver, eggs, and dark leafy greens. Your body also converts beta-carotene (from colourful veggies) into Vitamin A.
Vitamin B-Complex – Energy, Brain, Metabolism
What they do:
There are eight B vitamins—B1 to B12—and they’re often lumped together because they work as a group. Their main roles include:
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Converting food into energy
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Supporting brain function and mental clarity
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Promoting healthy red blood cells
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Regulating homocysteine (important for heart and brain health)
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Supporting DNA repair and methylation
Why it matters:
Without enough B vitamins, especially B12 and folate, you may experience fatigue, brain fog, mood dips, and even tingling in the limbs.
Where to get them:
Whole grains, legumes, eggs, meat, nutritional yeast, and leafy greens. B12 is mostly found in animal products, so vegans and vegetarians often need a supplement.
Vitamin C – Collagen, Immunity, Repair
What it does:
Vitamin C is a powerful antioxidant that helps protect cells from damage caused by oxidative stress. It also plays a starring role in collagen production, iron absorption, and immune support.
Why it matters:
Without enough Vitamin C, collagen synthesis slows down, leading to dull, sagging skin and slower wound healing. It also supports your immune cells in fighting off infections and repairing tissue.
Where to get it:
Citrus fruits, kiwifruit, strawberries, capsicum, broccoli, and leafy greens.
Vitamin D – Mood, Bones, Immunity
What it does:
Known as the “sunshine vitamin,” Vitamin D is actually a hormone precursor that regulates calcium absorption and supports bone health, immune resilience, and mental wellbeing.
Why it matters:
Low Vitamin D has been linked to depression, fatigue, weakened immunity, and muscle weakness. Many people in colder or cloudier climates are unknowingly deficient.
Where to get it:
Sunlight is the best source. You can also find it in fatty fish, fortified milks, mushrooms, and high-quality supplements.
Vitamin E – Skin Healing, Antioxidant Defence
What it does:
Vitamin E protects your cells from oxidative stress and supports skin hydration, barrier repair, and elasticity. It also supports the immune system and acts as a natural anti-inflammatory.
Why it matters:
It’s especially valuable for skin exposed to pollution, UV, or stress, helping soothe and protect. It also works synergistically with Vitamin C, boosting its stability and effectiveness.
Where to get it:
Nuts (especially almonds), seeds, avocado, olive oil, and spinach.
Vitamin K – Blood Clotting, Bone Health
What it does:
Vitamin K helps your blood clot properly and plays a role in maintaining bone density. It also helps regulate calcium placement in the body, reducing calcification of soft tissues.
Why it matters:
Beyond bone and blood health, Vitamin K is gaining attention for its potential to reduce under-eye circles and support capillary strength in the skin.
Where to get it:
Dark leafy greens, broccoli, Brussels sprouts, fermented foods (like natto), and dairy.
Why You Need More Than Just “Enough”
Even mild deficiencies in key high quality vitamins can show up as low mood, fatigue, brittle nails, dull skin, or slow recovery. But the problem is, these symptoms are often written off as “normal” when they’re actually signs that something’s off.
Modern life doesn’t make it easy, either: stress, alcohol, poor sleep, medications, and processed diets can all deplete key nutrients. That’s why even with a healthy diet, supplementation can be a smart, proactive step.
Why Our Collagen Includes Vitamin C and E
We designed our collagen formula not just for skin support, but for real function. That’s why we include two powerful high quality vitamins that directly boost how collagen works in the body, Vitamin C and Vitamin E, to support natural collagen synthesis, protect against oxidative stress, and help maintain skin that feels firm, hydrated, and resilient.
TMG and B Vitamins
We’ve also included a spectrum of B vitamins alongside TMG (trimethylglycine) to support methylation, energy, and nervous system health.
TMG is a powerful methyl donor that supports your body’s natural detox pathways, promotes healthy homocysteine levels, and plays a key role in cardiovascular and liver health. Methylation is essential not just for physical health, but also for brain function, mood, and long-term cellular repair, and TMG helps keep that system running smoothly.
Alongside TMG, our blend of activated B vitamins works to convert food into energy, regulate mood and cognition, and support everything from DNA repair to red blood cell formation.
