Peptides are everywhere in skincare, promising everything from firmer-looking skin to a smoother, more resilient complexion. But for all the buzz, you might still be wondering: what exactly are peptides, and what do they actually do?
Let’s break down peptides: what they are, how they work, and when they deserve a place in your routine.
What Are Peptides?
Peptides are short (but incredibly influential) chains of amino acids, the same building blocks that make up proteins. In your skin, proteins such as collagen, elastin, and keratin help provide structure, strength, and resilience.
Peptides can mean different things depending on the context. You’ll find them discussed in nutrition, supplements, medicine, and skincare. Here, we’re talking specifically about peptides used in skincare formulations.
When used in skincare, certain peptides can interact with skin cells and help support processes involved in maintaining your skin’s structure and function.
Some peptides are designed to support collagen synthesis, while others may help reinforce the skin barrier, improve hydration, or support a smoother-looking complexion.
This is why you’ll find peptides in products designed to address visible signs of skin aging, including fine lines, loss of firmness, and changes in texture.
Peptides are can be described as messengers because certain types can send signals to skin cells. However, not every peptide works in the same way, and the benefits depend on the specific peptide, its concentration, the formulation, and how well it can reach the part of the skin where it needs to act.
That distinction matters.
“Peptides” isn’t one single skincare ingredient with one universal effect. There are many different peptides, and formulators choose them for different purposes.
Unlike exfoliating acids or retinoids, which can directly influence skin cell turnover and other biological processes, peptides are generally used to support the skin rather than aggressively resurface it.
This can make peptide-based products an appealing option if you want an effective skincare routine without relying solely on stronger active ingredients.
“Peptides are one of the most exciting categories in modern skincare; not because they’re a miracle ingredient, but because they allow formulators to communicate with the skin in remarkably targeted ways. The real innovation isn’t simply adding peptides; it’s understanding which peptides are being used, what they’re designed to do, and how they’re supported by the rest of the formula.” — Jeannie Jarnot, Founder of Beauty Heroes
What Do Peptides Do for the Skin?
Peptides aren’t a single active with one predictable benefit.
Different peptides have been formulated to support different aspects of skin health and appearance.
Depending on the peptide and the overall formulation, they may help support collagen production, strengthen the skin barrier, improve hydration, and reduce the appearance of fine lines. Some may also help improve the look of elasticity and skin texture.
But most significantly…
Peptides Help Support Collagen
Collagen is one of the main structural proteins in your skin. It helps give skin its firmness, strength, and structure, but collagen production naturally declines as you age.
Some skincare peptides, particularly certain signal peptides, are used because they encourage skin cells to support processes associated with collagen and other extracellular matrix proteins.
The goal isn’t to replace lost collagen directly, but to support the skin’s own production and maintenance processes.
Peptides Support the Skin Barrier
Your skin barrier helps keep moisture in while protecting your skin from external stressors. When the barrier is compromised, you may notice dryness, roughness, tightness, or increased sensitivity.
Certain peptides may help support the skin’s barrier function by influencing processes involved in maintaining the epidermis.
Some peptide formulations are also combined with ingredients such as ceramides, fatty acids, humectants, and emollients to provide more comprehensive barrier support.
Peptides Improve Hydration
Some peptides can contribute to better skin hydration, either through their effects on skin function or as part of a broader moisturizing formulation.
However, peptides aren’t necessarily the ingredient doing all the hydrating work in a peptide serum. Ingredients such as glycerin, hyaluronic acid, aloe vera, and other humectants are specifically included to attract and hold water in the skin.
When you’re choosing a peptide product for dry skin, look at the whole formula, rather than assuming that the presence of peptides automatically means better hydration.
Peptides Can Soften the Appearance of Fine Lines
Fine lines become more noticeable as your skin gradually loses collagen, elastin, and moisture. Repeated facial movement, environmental exposure, and the natural aging process can also contribute.
Peptides may help address some of these visible changes by supporting processes involved in maintaining the skin’s structure. With regular use, certain peptide formulations may help fine lines look less pronounced and leave the skin looking smoother.
Peptides Support Skin Elasticity
When we talk about skin elasticity, we mean your skin’s ability to stretch and return to its original shape.
Collagen and elastin both play important roles in maintaining the skin’s structure and resilience.
Because some peptides can influence pathways involved in the production or maintenance of extracellular matrix proteins, they are often included in firming and anti-aging formulations.
If you’re noticing that your skin doesn’t feel quite as firm as it once did, peptides may be worth considering as part of your routine.
Peptides Support Smoother-Looking Skin Texture
Skin texture is influenced by many factors, including hydration, cell turnover, collagen loss, environmental exposure, and the condition of your skin barrier.
Peptides can support smoother-looking skin by helping maintain your skin’s structural and barrier functions. When your skin is properly hydrated and supported, it can look softer, plumper, and more even.
Types of Peptides
Not all peptides work in the same way. In skincare, peptides are generally grouped by the role they play in the skin, although some peptides can have more than one function.
We can find four main types of peptides:
- Signal peptides
- Carrier peptides
- Enzyme-inhibiting peptides
- Neurotransmitter-inhibiting peptides
Signal peptides are designed to send signals to skin cells that can influence processes involved in the production of collagen and other structural proteins.
They’re commonly used in firming and anti-aging formulations to support the appearance of firmer, more resilient skin.
Carrier peptides bind to and transport trace elements, such as copper, that are involved in processes important to skin repair and maintenance.
They’re often used to support skin repair, collagen and elastin production, and overall skin resilience.
Enzyme-inhibiting peptides peptides work by influencing the activity of certain enzymes involved in processes such as collagen and elastin breakdown.
They’re used to help preserve the skin’s structural proteins and support a smoother, firmer appearance.
Neurotransmitter-inhibiting peptides peptides are designed to influence signalling between nerves and muscles involved in facial expression.
They’re primarily used in products that target expression lines, particularly around areas such as the forehead and eyes.
It’s important to remember that these categories describe how peptides are intended to work, rather than guaranteeing a particular result.
The specific peptide, concentration, formulation, and stability of the product all influence how effective it can be.
Who Should Use Peptides?
Peptides can fit into a wide range of skincare routines, but they’re particularly useful if you’re trying to support your skin’s structure and resilience without relying on a routine built entirely around stronger actives.
- If you’re noticing your first fine lines
You don’t need to wait until you have pronounced wrinkles to introduce peptides.
If you’re beginning to notice fine lines or subtle changes in firmness, peptides can be a gentle addition to a routine focused on maintaining healthy-looking skin.
- If your skin is starting to feel less firm
If your skin doesn’t feel quite as firm or resilient as it used to, peptides may be worth considering. Peptides can support processes involved in maintaining collagen and other structural components of the skin.
They’re particularly useful if your main goal is to improve the appearance of firmness rather than simply adding hydration.
- If your skin is dry or your barrier needs support
Peptides can also make sense if your skin is prone to dryness or feels less resilient than usual. While peptides aren’t a substitute for moisturizing ingredients, they can complement a barrier-supportive routine.
For this purpose, look for peptide products that also contain ingredients such as ceramides, fatty acids, glycerin, or other moisturising agents.
- If you have mature skin
As collagen production naturally declines with age, mature skin can benefit from ingredients that support its structure, hydration, and resilience.
Peptides are a useful option if you’re looking for skincare that targets several visible signs of aging without making exfoliation or resurfacing the entire focus of your routine.
- If your skin doesn’t tolerate strong actives well
If retinoids, exfoliating acids, or other potent actives tend to leave your skin feeling uncomfortable, peptides can offer another approach to supporting the appearance of firmness, fine lines, and resilience.
- If you want a simple preventative routine
If your goal is to maintain your skin’s appearance and support its natural functions as it changes over time, a peptide serum or moisturizer can be incorporated into a straightforward routine.
Just don’t let peptides distract you from the fundamentals. Daily broad-spectrum sunscreen, an adequate moisturizer, and a routine you can use consistently remain more important than adding any single “anti-aging” ingredient.
How to Use Peptides
Peptides are relatively easy to add to your skincare routine because they generally play well with other ingredients. You’ll most often find them in leave-on products like serums and moisturizers, where they have time to get to work.
When choosing a peptide product, however, don’t get too caught up in the percentage on the label. More isn’t necessarily better.
Different peptides are effective at very different concentrations, and the percentages you see advertised often refer to an entire peptide complex or blend rather than the amount of pure peptide in the formula. For example, Matrixyl 3000 is typically used as a blend containing two different peptides, so a formula with 3% Matrixyl 3000 does not contain 3% of each individual peptide.
Other peptides, including copper tripeptide-1, can be effective at much lower concentrations. That’s why comparing a “10% peptide serum” with a “2% peptide serum” based on those numbers alone doesn’t tell you which is better.
Instead, look at the peptides being used, the quality of the overall formulation, and whether the product is designed to keep those ingredients stable and deliver them effectively.
Learn how to check the ingredients on the INCI list
Most peptide skincare products are designed for regular use, and many can be used once or twice a day. If the product instructions allow it, you can apply a peptide serum in the morning, evening, or both.
You don’t need to use peptides more frequently to get better results. Consistency is more useful than applying a product excessively.
If the formula also contains exfoliating acids, retinoids, or other potentially irritating ingredients, you might want to start by using it twice a week.
Ingredients That Pair Well
Peptides can generally be combined with other skincare ingredients, and using them alongside complementary actives can help you build a more complete routine.
- Peptides + vitamin C
Vitamin C and peptides can complement each other in a routine focused on maintaining healthy-looking, resilient skin.
- Peptides + hyaluronic acid
This is a straightforward combination if your main concern is dryness or dehydration.
Hyaluronic acid acts as a humectant, helping attract and retain water in the skin, while peptides can provide additional support for the skin’s structure and overall appearance.
- Peptides + ceramides
Peptides and ceramides can work particularly well in a barrier-focused routine.
Pairing ceramides with peptides can give you a formula that supports both the skin barrier and its structural resilience.
This combination can be especially appealing if your skin tends to feel dry, tight, or less resilient.
- Peptides + niacinamide
Niacinamide is a versatile skincare ingredient that supports the skin barrier, helps regulate sebum production, and can improve the appearance of uneven tone and texture.
Combined with peptides, it allows you to target barrier support, oil balance, skin firmness, and the appearance of fine lines.
- Peptides + retinol
Peptides and retinol can complement each other in a routine targeting visible signs of skin aging.
Retinol is a retinoid that supports skin cell turnover and can help improve the appearance of fine lines, uneven texture, and pigmentation.
Peptides work through different mechanisms and can provide additional support for the skin’s structure.
If you’re using separate products, you may prefer to introduce them gradually, particularly if you’re new to retinol, as irritation is more likely to come from the retinol rather than the peptides.
What Should You Avoid Mixing With Peptides?
There are very few ingredients that you universally need to avoid combining with peptides.
Peptides generally work well with many common skincare ingredients, including antioxidants, hydrating ingredients, barrier-supporting ingredients, and other anti-aging actives.
However, compatibility isn’t determined by the ingredient names alone.
The formulation matters. pH, stability, packaging, concentration, and the properties of the individual peptide can all influence how ingredients perform together.
This is particularly relevant when you’re using a highly active formula or combining several separate products.
A simple routine with a few well-chosen products is often easier to use consistently and makes it easier to identify anything that doesn’t agree with your skin.
“Peptides have become one of the most talked-about ingredients in skincare, but I think the conversation deserves more nuance. The question isn’t whether a product contains peptides; it’s which peptides, why they were chosen, and whether the surrounding formula allows them to do their best work. At Beauty Heroes, we look beyond ingredient trends and evaluate how every component contributes to the overall health and performance of the skin.” — Jeannie Jarnot, Founder of Beauty Heroes
Best Skincare With Peptides at Beauty Heroes
The best peptide skincare isn’t necessarily the product with the biggest peptide claim on the label.
What matters is the overall formulation: which peptides are being used, what they’re formulated alongside, and whether the product addresses your skin from more than one angle.
That’s why these Beauty Heroes picks stand out.
Each formula takes a different approach to peptides, pairing them with ingredients that support hydration, barrier function, antioxidant protection, or nourishment.
Beauty Heroes selects each product carefully following the most rigorous standard in the market.
These six peptide products completely meet the standard.
Marshmallow Poof puts peptides at the center of the formula, with a 15% concentration of five cell-communicating peptides, including acetyl hexapeptide-8, acetyl octapeptide-3, palmitoyl tripeptide-5, palmitoyl pentapeptide-3, and palmitoyl tripeptide-38.
Niacinamide, panthenol, ceramide NP, vitamin E, and tetrahexyldecyl ascorbate provide additional support, while aloe and glycerin contribute hydration. Shiitake, purslane, edelweiss, and superoxide dismutase add botanical and antioxidant support to the formula.
This serum provides peptide support alongside hydration, barrier care, and antioxidant protection.
The Multi-Active Hydramist takes a lighter approach to peptide skincare, combining a rice-derived protein ingredient with a broader blend of hydrating, barrier-supporting, and protective ingredients.
Its peptide component comes from hydrolyzed rice protein, a broken-down form of rice protein that contains smaller protein fragments, including peptides.
The formula surrounds this rice-derived ingredient with ingredients that support the skin in complementary ways. Sodium hyaluronate and glycerin, for moisture retention, panthenol (vitamin B5) to support the skin barrier, and ectoin to help protect skin cells from environmental stress.
The formula also contains fermented minerals, including zinc, copper, magnesium, iron, and silica, alongside botanical extracts and oils such as citrus, hibiscus, jasmine, neroli, rose, frankincense, and chamomile.
This serum takes a hydration-first approach to peptide skincare.
The formula contains hydrolyzed rice protein and hydrolyzed pea protein. These are proteins that have been broken down into smaller components, including peptides, and contribute to the skin-conditioning focus of the serum. They’re supported by proline and glycine to give skin its structure.
Glycerin, propanediol, sodium hyaluronate, betaine, and tremella mushroom extract help attract and retain moisture. Other supporting ingredients include niacinamire, squalane, rice lipids, and lightweight emollients to help soften the skin and reduce moisture loss.
The formula also brings in antioxidant-rich pomegranate and seaweed extracts, along with blue yarrow, aloe, turmeric, holy basil, and other botanical extracts.
This cream combines a concentrated peptide blend with ingredients that support hydration, barrier function, and skin conditioning.
Its five peptide ingredients include hexapeptide-11, palmitoyl tripeptide-1, palmitoyl tetrapeptide-7, and pea peptide extract, alongside quinoa seed extract.
The peptide blend is supported by niacinamide and ceramide NP, which help maintain the skin barrier, while glycerin and aloe provide hydration. Olive, marula, tamanu, baobab, and sesame oils add nourishing lipids and emollients that help soften the skin and support its moisture barrier.
The formula also contains a yeast ferment filtrate and botanical ingredients, including sweet orange peel water and sappanwood extract.
This deeply hydrating cream combines Arctic peptides with a rich blend of plant lipids, hydrators, and botanical extracts to support plumper, smoother-looking skin.
The peptide-focused formula is paired with beta-glucan, sodium hyaluronate, aloe, glycerin, and propanediol to boost hydration, while squalane, jojoba, avocado, mango seed, and camellia oils help soften the skin and support its moisture barrier.
Gotu kola, calendula, nettle, red clover, and other botanical extracts add further skin-conditioning benefits, and vitamin E provides antioxidant support.
Kari Gran brings peptides into a rich, protective lip balm designed to soften and smooth dry lips.
Its key actives are palmitoyl tripeptide-1 and palmitoyl tetrapeptide-7, the two peptides that make up the Matrixyl 3000® complex.
The peptides are paired with a nourishing blend of camellia seed, avocado, castor, sunflower, and olive oils, which help soften the lips and keep them feeling comfortable.
Beeswax adds a protective layer. Calendula and vitamin E provide additional conditioning and antioxidant support.
For the Best Results, Choose a Beauty Retailer You Can Trust
Peptides can be a valuable addition to your skincare routine, but the peptide itself is only part of the story.
Different peptides are designed to support different functions, and they can be paired with hydrators, ceramides, antioxidants, botanical extracts, and nourishing lipids to create a more complete formula.
If you’re wondering if you can use too many peptides, the answer is no. Peptides tend to work synergistically
The more important question is whether you’re choosing the right peptides in well-formulated products that suit your skin.
That’s why the quality of the brand and the expertise behind the formulation matter. Rather than chasing the latest peptide trend or the highest percentage on the label, look for reputable brands that understand how ingredients work together and formulate with the health and needs of your skin in mind.
This is the approach we take at Beauty Heroes.
The peptide-focused products we’ve selected include serums, moisturisers, a face mist, and a targeted lip treatment, but they all have something in common: peptides are thoughtfully combined with supporting ingredients that serve a purpose within the formula.
As Jeannie Jarnot, Founder of Beauty Heroes, puts it, the goal isn’t simply to choose a product because it contains peptides. It’s about choosing the right peptides, understanding how they work together, and trusting formulators who know how to create effective, balanced skincare.
Beauty Heroes stands behind each of these products for their formulations and results, if you’re ready to try more products like these, visit Beauty Heroes or subscribe to the monthly Discovery Box.
Frequently Asked Questions (FAQs)
Are peptides better than retinol?
Neither is universally better. Peptides and retinol work differently and can serve different purposes in your routine.
Retinol is a retinoid with well-established uses for improving the appearance of fine lines, uneven pigmentation, and skin texture. Peptides are generally used to support the skin’s structure and resilience, with different peptides designed for different functions.
If your skin tolerates retinol well and you’re looking for a more intensive anti-aging active, retinol may be the stronger choice. If you prefer a gentler approach or want to complement other actives with a peptide-focused product, peptides can be a useful addition. You can also use both in the same routine if the individual products are formulated to work together and your skin tolerates them.
Can I use peptides every day?
Yes. Most peptide skincare products are designed for regular use, including daily use, but always follow the instructions for the specific product you’re using.
Peptides themselves are generally easy to incorporate into a daily routine. If your peptide product also contains potentially irritating ingredients such as retinoids or exfoliating acids, follow the directions for the complete formula rather than treating it as a simple peptide product.
Consistency is more important than using a peptide product excessively.
Are peptides safe during pregnancy?
There isn’t enough pregnancy-specific research on topical cosmetic peptides to make a blanket safety claim for every peptide or peptide-containing formula.
If you’re pregnant, trying to conceive, or breastfeeding, check the full ingredient list of your skincare products and discuss anything you’re unsure about with your obstetrician or dermatologist. The American Academy of Dermatology specifically recommends reviewing skincare ingredients during pregnancy and advises avoiding retinoids, including retinol.
How long do peptides take to work?
Don’t expect overnight changes from peptides. Some products can make your skin feel more hydrated or temporarily plumper soon after application, particularly when they contain humectants and moisturizing ingredients.
Changes related to skin structure, firmness, and the appearance of fine lines take longer. Give a peptide product several weeks of consistent use before judging the results. As a general skincare guideline, the American Academy of Dermatology notes that many products need at least six weeks to show results, with some taking up to three months.
The timeframe also depends on the specific peptide, the concentration and formulation, how consistently you use it, and what other products are in your routine.
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