Can I ask you something? When was the last time you actually thought about why your skincare routine works, instead of just trusting the label?
I ask because I did the deep work. I strength train. I hit my protein targets. I track my sleep. I support my hormones. I have spent years learning how to age well from the inside out, and I know so many of you reading this have done the same. But then I walk over to my bathroom counter, look at my skincare shelf, and realize I am using the exact same categories of products I was using twenty years ago. Acids. Vitamin C. Retinol. They work, but they work on the surface. None of them are actually speaking the same cellular language as the rest of my health routine.
That disconnect has been bothering me for a while. So I went on a bit of a personal investigation. I have been interviewing dermatologists, researchers, and skincare formulators, trying to understand what is actually happening to our skin in midlife and whether there is something better than just layering on more serums and hoping for the best.
That is exactly why I brought Jennifer Scheinman back on the podcast. Jennifer is a registered dietitian, nutritionist, and the senior manager of nutrition affairs at Timeline, the company behind MitoPure. If you have listened to this show for a while, you already know I am a huge fan of their oral supplement, which is built around a molecule called urolithin A. I have talked about it constantly. What I did not expect was for that same science to show up in a topical skincare line, and I wanted to understand exactly what was behind it before I recommended it to any of you.
Skin Is an Organ, Not Just an Appearance Issue
Here is something that reframed the entire conversation for me. We tend to think about skin purely in terms of how it looks. But skin is an organ. It has a job to do. It is your first line of defense against the outside world, and when it starts to age, thin, or become inflamed, that is often a signal of something happening deeper inside your body too.
I will be honest with you about where I stand on all of this. I am not a fully natural, nothing-but-essential-oils kind of person. I color my hair. I have been open about having an upper eye lift. When it comes to food and supplements, I lean clean, but with skincare I have always struggled to find that line between doing things the healthy way and still liking what I see in the mirror. Brown spots, wrinkles, sagging skin, they bother me, and I do not think that makes me vain. I think it makes me honest. I think most of us care more than we admit, and there is nothing wrong with that.
The Real Reason Your Skin Changes in Your 40s and 50s
So what is actually driving this? According to Jennifer, there are two major categories of aging drivers happening at once.
The first is external. Sun exposure is the biggest one. Overexposure to UV light damages DNA, breaks down collagen, and drives inflammation in the skin. But this is not a reason to avoid the sun altogether. Getting natural light on your skin and in your eyes supports your circadian rhythm and helps your body produce vitamin D, both of which matter enormously for hormone health and mood in midlife. The goal is not zero sun. It is what Jennifer calls a Goldilocks amount, enough for those benefits, without the extended, unprotected exposure that accelerates skin aging and increases cancer risk.
The second driver is internal, and this is where things got really interesting for me. As we age, our cells experience something called mitochondrial decline. You have probably heard mitochondria described as the powerhouse of the cell, but Jennifer offered a better way to think about it. She calls them the CEO of the cell, because they are not just generating energy, they are also communicating with other cells and coordinating a huge amount of what happens inside your body.
Every cell in your body has mitochondria, including your skin cells. And starting in your 30s, accelerating through your 40s and 50s, those mitochondria naturally decline. When that happens, your skin cells simply have less energy available to do their jobs, which include constantly renewing themselves, building collagen, and protecting you from environmental damage. Less cellular energy shows up as wrinkles, thinning, sagging, dullness, and dryness. It is the exact same biological process that drives muscle loss and cognitive changes as we age. It just shows up differently depending on the tissue.
Timeline is offering 20% off your order of Mitopure at http://timeline.com/NATALIEJILL
The Estrogen Connection Nobody Talks About
If you are in perimenopause or menopause, this next part will probably land hard, because it did for me. Your mitochondria actually have estrogen receptors. That means as your estrogen declines during midlife, your mitochondrial function declines right along with it. It works the other way too. Your mitochondria play a role in how your body metabolizes estrogen, so when mitochondrial function drops, that can affect estrogen metabolism as well.
Estrogen also plays a massive role in collagen production and in your skin’s barrier function. So during the menopause transition, you are essentially dealing with an accelerated version of skin aging, driven by declining estrogen and declining mitochondrial function happening at the same time. This is why so many women describe waking up one day and feeling like they do not recognize the face looking back at them. It is not in your head, and it is not something you did wrong.
Why Skincare Conversations Have Been Stuck for Decades
One thing that stood out to me in this conversation is how little the mainstream skincare conversation has evolved compared to how much we now understand about the biology of aging. We talk endlessly about protein, strength training, sleep, and hormone support. But skincare, for the most part, is still stuck marketing the same handful of ingredients that have been around for decades.
Retinol and vitamin C are not bad. They have real evidence behind them, and there is a reason they have been staples for so long. But many women, especially in midlife, find that retinol becomes harder to tolerate as skin gets drier and more reactive. The irritation, flaking, and sensitivity that come with more aggressive retinol use can actually interfere with your skin barrier, which is the opposite of what you want during a life stage when that barrier is already compromised by hormonal shifts.
What has been missing, according to Jennifer, is a new generation of technology that targets the actual root causes of skin aging at the cellular level, rather than just treating the surface symptoms.
What Urolithin A Actually Does in the Skin
This is where MitoPure comes in. Urolithin A is a natural molecule, and the reason it is different from other actives is that it targets a very specific process called mitophagy. Think of it like a recycling and demolition system inside your cells. As mitochondria age and become dysfunctional, your body has a natural process for clearing out the damaged ones and building new, healthy ones in their place. Unfortunately, as we get older, that recycling process itself starts to slow down, which means damaged mitochondria stick around longer instead of being replaced.
Urolithin A appears to support that recycling process. This is a meaningfully different mechanism than something like niacinamide, which supports cellular energy metabolism, or vitamin C, which acts as an antioxidant protecting the cell from damage. Using Jennifer’s analogy, if niacinamide is a good worker on the factory floor and vitamin C is protecting the building, urolithin A is closer to renovating the entire factory so everything inside it works better.
What the Research Looked At
I want to be transparent here, because I think you deserve that. The clinical research on the topical MitoPure line comes from Timeline’s own studies, and Jennifer walked me through what those trials measured. Researchers looked at gene markers tied to mitochondrial turnover and collagen assembly, conducted skin biopsies, used lab-grown 3D skin models to study inflammation and cell senescence, and measured visible changes like wrinkle depth, wrinkle volume, and transdermal water loss.
According to that research, visible differences in fine lines and wrinkles showed up after two weeks of use, and became statistically significant by eight weeks. The trials also looked at how skin recovered from UV-induced redness and found faster resolution compared to a placebo. Because I know numbers matter to a lot of you, here is what was reported: a twenty three percent improvement in hydration over eight weeks, eighty percent of participants reporting more youthful looking skin, seventy seven percent reporting a visible tightening effect, and ninety percent reporting their skin felt more protected. In a separate fifteen day trial on the exfoliating product, skin cell renewal reportedly increased 2.1 times over baseline without impairing the skin barrier, and the trial population was specifically women ages 47 to 65, meaning it was tested on peri and postmenopausal skin, not twenty five year olds with naturally high collagen turnover.
As always, I think it is important to hold company sponsored research with an appropriately curious eye while still recognizing that this is a level of clinical investment most skincare brands simply do not do. I always encourage you to look at the full data yourself rather than taking anyone’s word for it, mine included.
Building Out the Routine Without Overcomplicating It
If you are wondering whether you need to overhaul your entire cabinet, the answer is no. The MitoPure skincare line includes a cleanser, a leave on exfoliator, a serum, two moisturizer options of different weights, and an eye cream formulated to be safe for the delicate periorbital area. Every product in the line is built around urolithin A as the core active, layered with supporting ingredients like niacinamide and peptides.
You do not need to replace your entire routine overnight. If you already love a particular serum or moisturizer, there is no reason you cannot layer these products in alongside what is already working for you. If you are looking for the simplest entry point, starting with the exfoliator or the serum is a reasonable way to test how your skin responds before committing to the full line.
The Bigger Takeaway
Here is what I keep coming back to after this conversation. We have gotten so sophisticated about supporting our bodies from the inside, tracking sleep, optimizing protein, understanding our hormones, but our skincare routines have not caught up to that same level of understanding. Skin is not separate from the rest of your health. It is responding to the exact same cellular aging processes happening in your muscles and your brain. Approaching it with that same level of curiosity, rather than just chasing the next trending ingredient, is a mindset shift I think more of us need.
I am genuinely testing this line myself right now, and I will be sharing my own results as I go. If you want to try it, you can find the full skincare line and the original MitoPure supplement at the link in the show notes, where you will also find a discount through our partnership with Timeline.
As always, become your own health detective. Ask why something works before you trust that it does, and remember that what is happening inside your cells is always going to show up on the outside eventually.
Timeline is offering 20% off your order of Mitopure at http://timeline.com/NATALIEJILL
The contents of the Midlife Conversations podcast is for educational and informational purposes only and is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider. Some episodes of Midlife Conversations may be sponsored by products or services discussed during the show. The host may receive compensation for such advertisements or if you purchase products through affiliate links mentioned on this podcast.
