Skincare is only half the story: supplements for healthy aging

Why the bottle on your vanity is not the whole plan

You invest in your skin. What about the rest of your body? We spend a lot of time on skin. Retinoids, vitamin C, sunscreen, lasers, and the occasional facial all have a job, and none of them are wasted. But a cream has to work on tissue that is being built from the inside, out of whatever you eat, sleep, and train with.

Aging shows up on the face long after it started elsewhere. Skin thins because collagen turns over more slowly. You look softer because muscle and bone have quietly left. The tiredness is usually energy production, recovery, or hormones, not your moisturizer.

So this is the other half of the conversation. Seven supplements we actually stock, because they map to gaps we see in clinic every week. Each section explains the mechanism first, then what is in the bottle, then who it tends to fit. Skip the ones that don't apply to you.

1. Collagen: structural support, not just skincare

Collagen is the most abundant protein in your body, and it is structural. It gives skin thickness and firmness, and it also builds tendons, ligaments, cartilage, and bone. When people hear "collagen," most picture a glow. The honest version is bigger than that: it is connective tissue support, and skin happens to be the visible part.

From your mid-twenties onward, your collagen matrix renews more slowly than it breaks down. Sun exposure, smoking, high sugar intake, and the estrogen drop of perimenopause all speed the loss. The result is skin that crepes and bruises easily, joints that feel stiff in the morning, and tendons that take longer to settle after a hard week.

Your body will not simply make more collagen because you want it to. It needs raw material and cofactors: adequate total protein, vitamin C, copper, and zinc, plus the specific peptides that research has actually tested. Bioactive collagen peptides are not just protein; they act as signals that prompt fibroblasts to build matrix. Generic gelatin is not the same intervention.

Who it fits: anyone noticing thinner or drier skin, stiff joints, or tendons that ache, plus anyone who trains and wants the tissue to keep up. If your total protein is low, fix that first. Collagen tops up a diet, it does not replace one.

2. CoQ10 ubiquinol: energy production in every cell

Every cell in you runs on ATP, and mitochondria make most of it. Coenzyme Q10 is part of the machinery: it shuttles electrons along the respiratory chain so your cells can produce ATP. That is not a metaphor for energy, it is literally the electron transport chain. CoQ10 also works as a fat-soluble antioxidant inside cell membranes.

There are two forms. Ubiquinone is the oxidized form; ubiquinol is the reduced, active form your body uses and regenerates. Converting one to the other gets less efficient as you age, which is why we carry ubiquinol rather than the cheaper ubiquinone.

CoQ10 levels fall with age, and statin medications push them down further because statins block the same pathway that makes both cholesterol and CoQ10. If you take a statin and feel flat or achy, that is a conversation worth having with your prescriber, and CoQ10 is often part of it. Do not stop a prescribed medication on your own.

Who it fits: patients over forty, anyone on a statin, and people whose complaint is fatigue rather than skin. It is one of the quieter supplements on this list, and one of the most consistently useful.

3. Creatine: muscle is longevity

Creatine is still the most misunderstood product on the shelf. People hear "bodybuilding powder" and move on. It is not a steroid and it is not a shortcut. Creatine is the fastest-acting energy buffer your muscle and brain cells use: phosphocreatine donates a phosphate group to regenerate ATP during short, hard efforts. It is also one of the most studied supplements ever made, with a safety record spanning decades.

Here is why it belongs in an aging conversation. Muscle mass and strength decline steadily from about age thirty, and the decline accelerates later. That loss has a name, sarcopenia, and it is what turns a slow metabolism into difficulty getting off the floor. Muscle is also your largest glucose sink, the tissue that clears most of the sugar you eat, so protecting it is metabolic care rather than vanity.

Creatine supports the training that protects that muscle. It helps you add reps under load, and over months those extra reps become retained tissue. Early research also points toward benefits for cognition and for a sleep-deprived brain, which is an active area of study and not yet a settled claim.

Who it fits: basically every adult, and women especially, who are sold far less of it than they should be. People with kidney disease should clear it with their clinician first, and everyone should drink more water while taking it.

4. Omega-3s: whole-body aging, not surface aging

EPA and DHA are structural fats. They sit inside cell membranes and keep them fluid, in the brain, the retina, and the skin. They are also the raw material for resolvins and protectins, molecules your body makes to resolve inflammation once it has done its job. That is a different task from the antioxidants in a serum, and it is why omega-3s show up in conversations about heart health, cognition, mood, dry eyes, and skin barrier function.

Most American diets are heavy in omega-6 seed oils and light in oily fish, so the ratio tilts the wrong direction. If you are not eating salmon, sardines, or mackerel several times a week, you are probably running short.

Who it fits: low-fish eaters, anyone with high triglycerides or dry eyes, and most patients in perimenopause. If you take a blood thinner or have surgery coming up, check with your provider first; concentrated omega-3s thin the blood slightly.

5. Liposomal glutathione: oxidative stress, minus the detox hype

Turning food into energy creates free radicals. That is normal and unavoidable. The problem is the imbalance, oxidative stress, which is what happens when free radicals outnumber your defenses and start damaging cell membranes, proteins, and DNA. It runs through skin aging, chronic inflammation, and most of the long-term disease we spend our careers trying to prevent.

Glutathione is the master antioxidant inside your cells. Every cell makes it from three amino acids: cysteine, glycine, and glutamate. It also recycles vitamins C and E, and it is central to phase-two detoxification in the liver. That last fact is why glutathione appears in every "detox" product online, and it deserves a more honest description. Glutathione is not a cleanse, a flush, or a cure for anything. It supports a system your body already runs whether or not you buy anything.

Levels decline with age, chronic illness, and a heavy inflammatory load. Oral absorption has historically been the weak point, since stomach acid breaks much of it down, which is why the delivery method matters more here than with most supplements.

Who it fits: patients with a high oxidative load, heavy training schedules, or visible aging skin, and anyone who wants the antioxidant conversation handled internally as well as topically. If you are pregnant, nursing, or in treatment for cancer, ask your oncologist or obstetrician before adding it.

6. Magnesium glycinate: sleep, recovery, and a calmer nervous system

Magnesium runs more than 300 enzyme systems, and the ATP in your cells is actually bound to magnesium. It governs muscle contraction and relaxation, nerve signaling, heart rhythm, and the calm side of your nervous system. Glycine, one half of the glycinate form, is itself calming.

It is also one of the most under-consumed nutrients in the country. Depleted soil, alcohol, high caffeine intake, chronic stress, and common medications such as diuretics and acid reducers all push levels down. Low magnesium tends to look like poor sleep, waking at 3 a.m., leg cramps, tension headaches, fluttering heartbeats, and slow recovery after training.

Form matters more than people realize. Magnesium oxide is cheap, poorly absorbed, and mostly acts as a laxative. Chelated forms are gentler on the gut and far better utilized.

Who it fits: almost everyone, and it is usually the first one people actually feel. Most patients take it in the evening. With kidney disease, check with your clinician before supplementing magnesium at all.

7. D3 with K2: bone and overall health, and why we test first

Vitamin D is not really a vitamin. It is a hormone precursor: your skin makes it from sunlight, then your liver and kidneys convert it into the active form. Receptors for it sit in most tissues, including immune cells, muscle, and bone.

Austin patients come up short constantly despite the heat. Indoor work, daily sunscreen, aging skin, and deeper skin tone all change how much you synthesize.

K2 is the reason we pair them. Vitamin D helps you absorb calcium. Vitamin K2, alongside K1, directs that calcium into bone and teeth and away from soft tissue and arteries by activating osteocalcin and matrix Gla protein. Taking high-dose D3 without K is like hiring a delivery crew with no instructions on where to put the boxes.

Now the part that matters most: vitamin D needs vary a great deal between people. We would rather test you than guess. A 25-hydroxy vitamin D blood test shows where you start, and a repeat at eight to twelve weeks shows whether the dose fits. Bone density is best tracked on a DEXA scan, which also reports lean mass and visceral fat, so the two numbers move together.

Who it fits: most adults as a maintenance dose, which is not the same as saying most adults need this exact number. If your labs come back already adequate, you may need less, and long-term high doses without testing are not a good idea.

How we actually put this together

The goal isn't to take 20 supplements. It's to know what your body actually needs.

In clinic, that starts with data, not a catalog. Comprehensive bloodwork gives us vitamin D, lipids, A1c, thyroid, and hormone markers. A DEXA scan gives us lean mass, bone density, and visceral fat, which is where the collagen, creatine, and vitamin D conversations either get confirmed or get dropped. Then we write a short list, usually three to five items, and revisit it a quarter later.

A supplement you do not need is expensive urine, and a few of these are not cheap. The point of testing is to make the list short enough that you actually take it.