What Are Ceramides and Why They Matter More as Skin Ages

Most people have heard of ceramides in moisturizers, but fewer understand what they actually are or why the skin can start to run lower on them with age. Just as you might know about antioxidants and collagen, ceramides are a foundational skin health topic that’s getting a refreshed spotlight as many people start to shift their focus toward beauty from within.

What Are Ceramides?

Ceramides are lipid (fat) molecules that occur naturally in your skin and make up a large portion of its outermost layer, which is called the stratum corneum. You can think of ceramides as the "mortar" between your skin cells, as they hold everything together and form the lipid barrier that keeps moisture in and potential environmental irritants out.

Without enough ceramides, the skin barrier becomes compromised and more vulnerable. Skin loses hydration, feels rougher, and becomes more reactive to the elements. Ceramides differ from other skin-health buzzwords like collagen (which provides structural support) or hyaluronic acid (which draws water into the skin), as they’re specifically about barrier integrity and retaining moisture.

Why Ceramide Levels Decline with Age

It’s no secret that the skin of your twenties doesn’t maintain its moisture and elasticity quite the same way in your forties, fifties, and beyond. This also means skin doesn't maintain its ceramide supply indefinitely. Natural ceramide levels begin to decline with age, and the factors compound over time.

Several factors drive changes to the skin barrier:

• Biological aging: The skin gradually produces fewer lipids, including ceramides, as part of the natural aging process.
• UV exposure: Sun damage degrades the skin's lipid barrier over time, especially if appropriate UV protection hasn’t been used.
• Environmental stressors: Pollution and harsh weather negatively influence of the skin barrier.
• Lifestyle factors:  Poor sleep, a diet low in essential fatty acids, smoking, and habits like over-cleansing or taking long hot showers can all chip away at the skin's natural lipid barrier over time.

The result shows up as the most common complaints of aging skin, including increased dryness, loss of elasticity, rougher texture, more visible fine lines, and a barrier that's slower to bounce back.

Topical vs. Ingestible Ceramides

For years, ceramides have been a staple of dermatologist-recommended moisturizers and serums, where they work by replenishing the skin's surface barrier from the outside in. Research supports their efficacy in topical form, particularly for improving hydration and supporting a more resilient skin barrier.

More recently, oral (ingestible) ceramide supplements have emerged as a complementary approach. When ceramides are taken by mouth, they're broken down during digestion, and the resulting components are absorbed through the bloodstream, where they're believed to support the skin's own lipid production — a different pathway than topical products entirely.

The two approaches don't compete; they target the same goal from different directions, which is why pairing a topical routine with an ingestible supplement is increasingly how skin health professionals think about barrier support.

Nature's Bounty^® Age-Defying Skin Renewal

For those looking to add ingestible ceramides to their routine, Nature's Bounty^® Optimal Solutions Age-Defying Skin Renewal is a once-daily supplement designed to address five key signs of aging skin:

• Fine lines and wrinkles
• Elasticity
• Hydration
• Texture
• Skin barrier integrity

The formula features a specific ceramide, ingredient that has been evaluated in clinical research. Those studies have shown visible improvements in skin hydration, elasticity, smoothness, and the appearance of fine lines and wrinkles in as little as 30 days.*

The formula also pairs ceramides with green tea extract, which provides antioxidant support to help fight free radicals — molecules that can contribute to oxidative stress and the premature aging of cells.* Together, these two ingredients address skin aging from two angles: hydration and skin barrier support from within, and antioxidant support against free radicals.

One capsule a day makes it a straightforward addition to any existing routine, with optimal results seen with continued use.*

Ceramides in Your Routine

Ceramides can work well as part of your everyday skin health routine. Some people like using a topical product after cleansing their face.

Oral ceramides, like Nature's Bounty^® Optimal Solutions Age-Defying Skin Renewal, offer once-daily support to address 5 key signs of aging skin: fine lines and wrinkles, elasticity, hydration, texture, and the skin barrier.* The two approaches can complement each other, as topical ceramides reinforce the skin's surface, while oral ceramides work from within.

Consistency matters more than intensity, as ceramide benefits build over time rather than appearing all at once. This is what makes them a daily habit.

Ceramides and Skin: What to Remember

Ceramides are a foundational piece of how healthy skin functions, and their natural decline with age is one explanation for why skin looks and feels different over time.

Supporting ceramide levels, whether through topical products, a daily supplement like Nature's Bounty^® Optimal Solutions Age-Defying Skin Renewal, or both, is one step you can take toward maintaining a stronger skin barrier, supporting skin hydration, and a smoother appearance as you age.*

Check out the full line of Nature’s Bounty^® skin, hair, and nail support products.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

References

1. Yong TL, Zaman R, Rehman N, Tan CK. Ceramides and skin health: New insights. Exp Dermatol. 2025;34(2):e70042.
2. Bizot V, Cestone E, Michelotti A, Nobile V. Improving Skin Hydration and Age-related Symptoms by Oral Administration of Wheat Glucosylceramides and Digalactosyl Diglycerides: A Human Clinical Study. Cosmetics. 2017; 4(4):37.
   https://doi.org/10.3390/cosmetics4040037
3. Parke MA, Perez-Sanchez A, Zamil DH, Katta R. Diet and Skin Barrier: The Role of Dietary Interventions on Skin Barrier Function. Dermatol Pract Concept. 2021;11(1):e2021132. Published 2021 Jan 29. doi:10.5826/dpc.1101a132
4. Spada F, Barnes TM, Greive KA. Skin hydration is significantly increased by a cream formulated to mimic the skin's own natural moisturizing systems. Clin Cosmet Investig Dermatol. 2018;11:491-497. Published 2018 Oct 15. doi:10.2147/CCID.S177697