Zinc has never been the “glamorous” supplement. It doesn't have collagen's glow-up story or magnesium's cult following. Nobody's posting about their zinc routine.

Yet, quietly and consistently, it does an enormous amount for you. For women especially, it's one of those little everyday minerals that genuinely deserves your attention.

So, here's the simple version. What zinc does, whether you need it, and how to take it without overthinking a single thing.

What Is Zinc and Why Does Your Body Need It?

Zinc is an essential trace mineral. Essential means your body needs it to work properly, and trace meaning you only need a small amount. 

The catch is that your body can't make it on its own, so it has to come from your food or a supplement.

It is involved in over 300 reactions in your body, which is a lot for something you've probably never thought about. 

That's exactly why running low can show up in so many ways, from your skin and hair to your energy and immune system.

Here's the bit worth knowing: your body doesn't store zinc. So, a little every day matters far more than a lot once in a while.

What Are the Benefits of Zinc Supplements?

Here's what zinc is quietly doing for you behind the scenes. 

These are the benefits of taking zinc that are backed by authorised evidence, not marketing spin.

1. Zinc for Your Immune System

This is the one zinc is famous for, and the evidence is solid.

Zinc contributes to the normal function of the immune system. It's why so many of us reach for it at the first sniffle, and why keeping your levels topped up matters through a long Irish winter.

Supplements will never replace good food, decent sleep and looking after yourself. But they're a simple way to cover your bases.

2. Zinc for Skin, Hair and Nails

Zinc contributes to the maintenance of normal hair, skin and nails. That's an EU-authorised claim, not a nice line someone made up in a marketing meeting.

Zinc for skin, hair and nails is one of the most common reasons women start taking it. It also helps protect your cells from oxidative stress, which is part of the everyday picture of skin ageing.

It's the definition of a quiet worker. You won't feel it happening, but it's there.

3. Zinc and Your Collagen Routine

Here's one that often gets missed. Zinc contributes to normal protein synthesis, and collagen is a protein. So, if you're already taking marine collagen for your skin and hair, zinc is a sensible partner to have alongside it.

Beauty from within works best as a team effort, not a solo act.

4. Zinc for Hormones and Fertility

Zinc and hormones have a close relationship, which makes it especially relevant for women.

Zinc contributes to normal fertility and reproduction, and to the maintenance of normal testosterone levels in the blood. (And yes, women need testosterone too. It plays a role in energy, libido and bone strength.)

If you're navigating a particular life stage and wondering what's right for you, your GP is always the best person to ask.

5. Zinc for Your Brain

Zinc contributes to normal cognitive function, which covers things like focus and mental clarity.

It's one of the reasons that vague, foggy, can't-quite-think feeling is worth investigating rather than just accepting it as your new normal.

6. Zinc for Energy and Metabolism

Zinc contributes to normal carbohydrate metabolism and normal macronutrient metabolism, which is the process of turning what you eat into energy you can actually use.

Not glamorous. Very useful.

7. Zinc for Bones and Vision

Two benefits that rarely get a mention. Zinc contributes to the maintenance of normal bones and normal vision, both of which matter more as the years go on.

Zinc Deficiency Symptoms: Signs You Might Be Low

Low zinc rarely announces itself. It tends to creep in slowly, and the signs are easy to blame on a busy few months. 

Here's what people commonly notice:

• Picking up colds more often, or taking longer to shake them

• Hair feeling thinner or shedding more than usual.

• Skin that's slow to settle or heal

• White spots on your nails

• Feeling tired and flat

• Changes to your cycle

• Brain fog or trouble concentrating

• Food not tasting quite as it should

 

Women can need more zinc at certain stages, including during menstruation, pregnancy and breastfeeding. And if you eat mostly plant-based, it is worth knowing zinc is harder to absorb from plant foods than from animal ones.

If any of this sounds like you, please don't self-diagnose from a blog (even a lovely one). Your GP can check your levels with a simple blood test, and that's always the better starting point.

A few practical tips:

• Take it with food to keep your stomach happy.

• Don't take it at the same time as iron, as the two compete for absorption.

• If you're on antibiotics, have a quick word with your GP or pharmacist first.

 

Why Zinc Bisglycinate?

Not all zinc is created equal, and the form really does matter.

Zinc Bisglycinate is zinc bound to an amino acid called glycine, which makes it easier for your body to absorb and much kinder on your stomach than cheaper forms like zinc oxide. It's what the better supplements use, for exactly that reason.

Our Zinc Bisglycinate capsules are 25mg and cost €13.99

Simple, clean, easy to take daily. No unnecessary fillers or small print.

That's the whole point of Supplements Made Simple, really. Everything we make is formulated by doctors, made here in Ireland, and Guaranteed Irish approved, gluten-free and coeliac-tested.

 

Zinc and the Rest of Your Routine

Zinc plays beautifully with others. It pairs particularly well with:

• Marine Collagen. Zinc contributes to normal protein synthesis, and collagen is a protein, so they complement each other nicely. Shop Marine Collagen here

• Vitamin C. Both contribute to normal immune function, and vitamin C contributes to normal collagen formation. 

• Omega 3. Another well-rounded staple that supports you from within. Shop Omega 3 Fish Oil here

If you're building a proper beauty-from-within routine, our Glow Bundle (Marine Collagen Plus with Vitamin C, Omega 3 Fish Oil and CoQ10) is a lovely place to start.

Add zinc alongside it, and you've covered a lot of ground with very little effort.

Frequently Asked Questions

What does zinc do for the body?

Zinc is involved in over 300 reactions in your body. It contributes to normal immune function, the maintenance of normal skin, hair and nails, normal protein synthesis, normal fertility and reproduction, normal cognitive function and normal metabolism. Your body can't make it, so it must come from food or a supplement.

What are the signs of zinc deficiency?

Common signs include frequent infections, thinning hair, skin that's slow to heal, white spots on nails, tiredness, brain fog and a reduced sense of taste. Some women also notice changes to their cycle. A blood test from your GP is the only way to know for sure.

Is zinc good for skin?

Yes. Zinc contributes to the maintenance of normal skin and helps protect your cells from oxidative stress, which is why zinc for skin is one of the most popular reasons women take it.

How much zinc should a woman take daily?

Around 8 to 9mg a day for adult women, rising during pregnancy and breastfeeding. Zinc Bisglycinate capsules at 25mg are a common, well-tolerated dose. The upper safe limit is 40mg a day, so always follow the guidance on your product.

Can you take zinc every day?

Yes. Zinc is safe for daily use at recommended amounts. Because your body doesn't store it, taking it consistently is more effective than dipping in and out.

When should I take zinc?

With food, to reduce the chance of an upset stomach. Try not to take it at the same time as iron supplements or certain antibiotics.

 

Always check with your GP before starting any new supplement, especially if you're pregnant, breastfeeding, or taking medication.