Chronic inflammation: Could this be why your skin is aging prematurely?

Today, I want to talk to you about a topic I love discussing: the connection between our inner health and skin aging. Yes, your skin ages from the inside out. For many people, it seems as though time has no effect, and we often take the easy way out by blaming it all on genetics or heredity. In reality, it’s our lifestyle habits that are hereditary.

What exactly is inflammation?

Let's start by demystifying the term. Acute inflammation is a good thing. When you cut your finger and it turns red, swells, and feels warm? That's your immune system at work—it's sending in soldiers to repair the damage. Mission accomplished—the inflammation is over.

But there’s another type of inflammation that isn’t talked about as much: low-grade chronic inflammation. Imagine a small fire smoldering constantly inside your body. Not strong enough for you to really feel it, but persistent enough to damage everything in its path—including your skin.

Researchers have even coined a term to describe this phenomenon when it is related to age: "inflamm-aging".¹ The perfect combination of "inflammation" and "aging." It literally means aging through inflammation.

What Inflammation Does to Your Skin

To stay firm, smooth, and radiant, your skin needs two proteins to be in top shape: collagen and elastin. These are what give your skin its firmness and its ability to “bounce back.” Guess which factor targets these two proteins first?

Chronic inflammation triggers the production of molecules called matrix metalloproteinases (MMPs).² These enzymes actively break down collagen and elastin. As a result, your skin loses its elasticity, wrinkles appear, and your complexion becomes dull.

But that's not all. Inflammation also causes significant oxidative stress—that is, an excess of free radicals in your body. These unstable molecules attack your skin cells and accelerate their aging.

"An anti-inflammatory diet is one of the most powerful ways to maintain healthy skin over the long term." — Dr. Nicolas Perricone, dermatologist and researcher in skin nutrition

The Culprits

What's fascinating—and sometimes frustrating—about chronic inflammation is that its triggers are often very ordinary habits. Here are a few of them:

• Refined sugar and ultra-processed foods: They cause blood sugar spikes that trigger inflammatory responses.
• Lack of sleep: When sleep lasts less than 7 hours, the body produces more pro-inflammatory cytokines.³
• Chronic stress: Excess cortisol breaks down collagen and weakens the skin barrier.
• A sedentary lifestyle: Regular exercise is a natural anti-inflammatory.
• An imbalanced gut microbiome: the gut-skin axis is well established, and a depleted gut flora often shows up in the complexion.

Inflammation doesn't just happen by chance. It reflects our overall lifestyle. So how can we prevent inflammation on a daily basis?

The Skin's Anti-Inflammatory Allies

The good news is that diet is one of the most powerful tools for reducing this inflammation—and luckily, nature has thought of everything and is full of such options.

Omega-3s

Among the nutrients best documented for their anti-inflammatory effects, omega-3s hold a prominent place. Found in fatty fish (salmon, mackerel, sardines), flaxseeds, walnuts, and chia seeds, they work by rebalancing the omega-6-to-omega-3 ratio—a chronic imbalance in the modern Western diet that, on its own, sustains a state of chronic inflammation.³

They have a dual mechanism of action: on the one hand, they reduce the production of pro-inflammatory molecules such as prostaglandins and leukotrienes; on the other hand, they promote the synthesis of resolvins and protectins, compounds that actively signal the end of the inflammatory response.⁴ When it comes to the skin, omega-3s strengthen the skin's lipid barrier, improving its hydration, suppleness, and resistance to external stressors.

An omega-3 deficiency often manifests as dry, sensitive skin that may even be prone to inflammatory flare-ups such as eczema or psoriasis. For optimal intake, aim for 2 to 3 g of EPA+DHA per day, ideally through your diet or a high-quality supplement like this one New Roots' complete version.

Antioxidants

If inflammation is a fire, free radicals are the sparks. Antioxidants are the firefighters. Their role is to neutralize these unstable molecules before they damage skin cells, break down collagen, and accelerate aging. But not all antioxidants are created equal; each acts at a different level, which is why diversity is so important.

• Vitamin C (found in citrus fruits, red bell peppers, and kiwis) is essential for collagen synthesis and directly protects fibroblasts from oxidative stress.⁵
• Vitamin E (found in almonds, wheat germ oil, and sunflower seeds) works in synergy with vitamin C to regenerate cell membranes.
• Beta-carotene (found in carrots, sweet potatoes, and squash) is converted into vitamin A in the body and plays a key role in skin cell renewal.
• The polyphenols found in berries, green tea, raw cacao, red grapes, and extra-virgin olive oil form a family of particularly powerful antioxidants that protect cellular DNA and reduce the expression of pro-inflammatory genes.⁶

A diet rich in colorful plant foods is the most effective strategy for covering the entire antioxidant spectrum, as each color corresponds to a different family of protective compounds.

Turmeric

Curcumin, the active ingredient in turmeric, is one of the most extensively studied anti-inflammatory compounds in scientific research, with more than 3,000 studies published to date.⁷ Its primary mechanism of action involves inhibiting the transcription factor NF-κB, a key regulator of the inflammatory response implicated in numerous chronic diseases, ranging from diabetes to cardiovascular disease and skin aging.

When it comes to the skin, curcumin protects fibroblasts from oxidative stress, reduces the production of matrix metalloproteinases (enzymes that break down collagen), and supports wound healing.⁸ Its only Achilles’ heel: naturally low bioavailability. Without an adjuvant, a large portion is broken down before it reaches the bloodstream. The solution? Always combine it with black pepper (piperine), which increases its absorption by 2,000% according to some studies, or opt for liposomal or nanoparticle formulations for optimal results.⁹ In the kitchen, incorporate it into your golden broths, salad dressings, curries, and lattes—and never forget the pepper. Léo Désilets suggests pairing it with Turmeric + Piperine in capsules.

Black Cumin Oil

Although less well known than turmeric, black cumin oil (Nigella sativa) is nevertheless one of the most extensively studied medicinal plants for its anti-inflammatory properties. Its main active ingredient, thymoquinone, acts simultaneously on several inflammatory pathways, notably by inhibiting the pro-inflammatory cytokines TNF-alpha and IL-6, as well as the COX-2 enzyme.⁶ Recent research has also highlighted its direct antioxidant effect on skin cells, helping to reduce the oxidative stress responsible for collagen breakdown.⁷ When taken internally, one teaspoon a day is enough to enjoy its benefits. When used externally and applied topically, it helps soothe sensitive skin and strengthen the skin barrier. A doubly valuable ally both on your plate and in your beauty routine, available in stores.

Boswellia

An extract from the resin of the Boswellia serrata tree, Boswellia—known as Shallaki in India, Ru Xiang in China, Luban in Oman, or simply as frankincense in ancient times—is one of the most versatile medicinal plants in human history. For more than three millennia, this resin has held a prominent therapeutic role on the Indian subcontinent, while the ancient Egyptians used it in their medicinal preparations for wounds and inflammation, and traditional Chinese medicine and Middle Eastern medicine have also relied on it for centuries. In Oman, Luban is much more than a medicinal plant; it is a cultural symbol deeply rooted in daily life, used as incense, in herbal teas, and as a traditional remedy since ancient times. This is no coincidence: its presence along the Silk Road gave it unique exposure to many cultures, all of which were drawn to its therapeutic versatility.

Today, modern science confirms what these civilizations intuitively knew. Its active compounds, boswellic acids, specifically inhibit the enzyme 5-LOX (5-lipoxygenase), an inflammatory pathway that neither turmeric nor black cumin directly targets.⁸ This additional benefit makes it a particularly valuable ally in a comprehensive anti-inflammatory approach. When it comes to the skin, Boswellia helps reduce the breakdown of collagen and elastin fibers while supporting cell renewal.⁹ It is available as a dietary supplement in the form of standardized AKBA capsules (acetyl-11-keto-β-boswellic acid), its most bioavailable and best-documented form. An ingredient that is still relatively rare on store shelves, but whose reputation continues to grow in the world of nutricosmetics.

Astaxanthin

If antioxidants were a firefighting team, astaxanthin would be the captain. This natural red-orange pigment, derived primarily from the microalgae Haematococcus pluvialis, is now considered one of the most powerful antioxidants ever identified, with an ability to neutralize free radicals estimated to be 6,000 times greater than that of vitamin C and 550 times greater than that of vitamin E, according to some studies.¹⁰ In fact, it is this substance that gives flamingos and wild salmon their pink color—animals that naturally consume it as part of their diet.

What makes astaxanthin particularly remarkable for the skin is its unique molecular structure: unlike most antioxidants, which act either in the hydrophilic or lipophilic parts of cells, astaxanthin passes through the cell membrane in its entirety, protecting the cell from both the inside and the outside.¹¹ In practice, this results in measurable effects on skin aging: reduced wrinkle depth, improved elasticity, protection against UV damage, and a reduction in dark spots.¹² Clinical studies have shown visible results as early as 8 to 12 weeks of supplementation at a dose of 4 to 8 mg per day.

In terms of its anti-inflammatory effects, astaxanthin also inhibits the production of matrix metalloproteinases (MMPs)—the very enzymes that break down collagen and elastin. This dual mechanism of action makes it a top choice for anyone looking to address both chronic inflammation and visible skin aging. Look for it in the form of a standardized dietary supplement, such as the formula Beauty+ by Living Alchemy, or naturally in wild salmon, shrimp, lobster, and trout.

Probiotics and Prebiotics

There is a lot of talk about the skin as an organ that needs to be cared for from the outside. But there is another, less visible yet fundamental connection: the gut-skin axis. This two-way connection between the gut microbiome and skin health is now one of the most promising areas of research in nutritional dermatology. A depleted or imbalanced microbiome—known as dysbiosis—leads to increased intestinal permeability, allowing bacterial fragments to enter the bloodstream and trigger a systemic inflammatory response that is directly reflected in the complexion: redness, breakouts, a dull complexion, and increased sensitivity.¹⁰

Probiotics are the live microorganisms that populate and strengthen this gut flora. They are found naturally in fermented foods: milk or water kefir, kombucha, plain yogurt, raw sauerkraut, kimchi, miso, and tempeh. Each fermented food provides different bacterial strains, which is why it’s beneficial to vary your sources rather than limiting yourself to a single food. The strains best documented for their anti-inflammatory effects on the skin are Lactobacillus rhamnosus, Lactobacillus acidophilus, and Bifidobacterium longum.¹¹

Prebiotics, on the other hand, are dietary fibers that nourish these good bacteria and allow them to thrive. They are found in garlic, onions, leeks, asparagus, slightly green bananas, oats, and legumes. Without prebiotics, probiotics cannot establish themselves long-term; the two are inseparable, like a gardener and compost.

Recent studies also show that certain probiotic strains directly reduce the production of pro-inflammatory cytokines such as IL-6 and TNF-alpha, helping to counteract inflamm-aging from within.¹² Taking care of your microbiome means investing simultaneously in your digestive health, your immune system, and your skin’s radiance—three benefits for the price of one.

"Nourishing your body with the right foods is the most powerful night cream there is."

What You Can Do Starting This Week

You don't have to turn everything upside down all at once. Here are three simple steps you can take to start reducing inflammation and pampering your skin from the inside out:

• Add one tablespoon of chia seeds and ground flaxseed in your smoothie or your morning oatmeal.
• Replace a sweet snack with a small one handful of nuts and a few fresh or frozen berries.
• Try making your own golden broth: hot plant-based milk + turmeric + ginger + black pepper + a drizzle of honey. Simple, comforting, and anti-inflammatory.

These small actions may seem insignificant, but their cumulative effect on your skin and your overall health will make a difference. Remember, lasting beauty starts with what you eat.

Chronic inflammation is one of the main causes of premature skin aging. It breaks down collagen, causes oxidative stress, and disrupts the skin barrier. But it can be largely influenced by our lifestyle—and in particular, by our diet. No matter how much sunscreen we slather on to slow down premature skin aging, if we don’t take care of ourselves from the inside, our efforts will be in vain.

At La Boîte à Grains, you'll find everything you need to create an anti-inflammatory diet to incorporate into your skincare routine: seeds, nuts, spices, superfoods, and natural probiotics.

About the Author

Ophélie Thieblemont, a holistic esthetician, worked as the manager of cosmetics and supplements at La Boite à Grains from the Plateau in 2024 and 2025

In-depth knowledge of:

• Cosmetology
• Medical Aesthetics
• Nutricosmetics (or cosmofood)
• Aromatherapy

Discover all the profiles from our experts!

References

1. Franceschi, C., et al. (2000). Inflamm-aging: An evolutionary perspective on immunosenescence. Annals of the New York Academy of Sciences, 908(1), 244–254.

2. Brennan, M., et al. (2003). Inhibition of type I collagen synthesis by matrix metalloproteinases. Experimental Dermatology, 12(4), 412–422.

3. Mullington, J.M. et al. (2010). Sleep loss and inflammation. Best Practice & Research Clinical Endocrinology & Metabolism, 24(5), 775–784.

3b. Simopoulos, A.P. (2002). Omega-3 fatty acids in inflammation and autoimmune diseases. Journal of the American College of Nutrition, 21(6), 495–505.

4. Schagen, S.K. et al. (2012). Discovering the link between nutrition and skin aging. Dermato-Endocrinology, 4(3), 298–307.

5. Hewlings, S.J. & Kalman, D.S. (2017). Curcumin: A Review of Its Effects on Human Health. Foods, 6(10), 92.

6. Majdalawieh, A.F. & Fayyad, M.W. (2015). Immunomodulatory and anti-inflammatory effects of Nigella sativa and thymoquinone. International Immunopharmacology, 28(1), 295–304.

7. Ahmad, A. et al. (2013). A review of the therapeutic potential of Nigella sativa: A miracle herb. Asian Pacific Journal of Tropical Biomedicine, 3(5), 337–352.

8. Vaughn, A.R. et al. (2016). Effects of Turmeric on Skin Health. Phytotherapy Research, 30(8), 1243–1264.

9. Shoba, G., et al. (1998). Influence of piperine on the pharmacokinetics of curcumin. *Planta Medica*, 64(4), 353–356.

10. Salem, I., et al. (2018). The gut microbiome as a major regulator of the gut-skin axis. Frontiers in Microbiology, 9, 1459.

11. Bowe, W.P. & Logan, A.C. (2011). Acne vulgaris, probiotics, and the gut-brain-skin axis. Gut Pathogens, 3(1), 1.

12. Mazziotta, C. et al. (2023). Mechanisms of action of probiotics on immune cells and their beneficial effects on human health. Cells, 12(1), 184.