If you've spent any time looking at skincare recently, you've probably noticed the word peptides everywhere.
From luxury serums to anti-ageing creams, peptides have become one of the most talked-about ingredients in modern skincare. Yet despite their popularity, they're often one of the most misunderstood.
After more than 20 years working across pharmaceutical, natural medicine and skincare industries, I've noticed many consumers are investing in peptide products without actually understanding what peptides do, how they work, or whether they're worth the hype.
So let's break it down.
What Are Peptides?
Peptides are short chains of amino acids, which are often referred to as the building blocks of proteins.
Proteins such as collagen and elastin are responsible for helping skin appear firm, smooth and resilient. As we age, our natural production of these proteins gradually declines, which can contribute to the appearance of fine lines, wrinkles and loss of firmness.
Think of peptides as messengers.
They send signals to the skin, encouraging it to perform certain functions such as supporting collagen production, improving elasticity or helping the skin appear firmer and more resilient.
Are Peptides Better Than Retinol?
This is one of the most common questions I get asked. The truth is that peptides and retinol work very differently.
Retinol accelerates skin renewal and is often used to address signs of ageing. While highly effective, some people may experience dryness, irritation or sensitivity when introducing retinol into their routine.
Peptides, on the other hand, are generally well tolerated and focus on supporting the skin's natural processes through cellular communication.
Rather than choosing one over the other, I often view peptides as part of a well-rounded skincare routine, particularly for those looking to support healthy-looking skin without compromising comfort.
What Most Brands Won't Tell You
Simply seeing the word "peptide" on a label doesn't automatically mean a product will deliver meaningful results.
Not all peptides are the same.
Different peptides have different functions. Some are designed to support the appearance of firmness, while others focus on smoothing the look of fine lines or supporting skin resilience.
Equally important is the overall formulation.
A peptide doesn't work in isolation. It should be supported by ingredients that help maintain hydration, strengthen the skin barrier and protect against environmental stressors.
This is why I always encourage consumers to look at the entire ingredient list rather than focusing on a single hero ingredient.
The Peptides We Use At KenzaKo
When formulating our Replenishing AM Cream and Radiant Facial Serum, I wanted more than a product that simply followed trends.
I wanted formulas that combined clinically recognised peptides with ingredients that support overall skin health.
Both formulations contain:
Trifluoroacetyl Tripeptide-2
This advanced peptide is often used in skincare designed to support the appearance of skin firmness and elasticity.
As skin naturally changes with age, ingredients such as Trifluoroacetyl Tripeptide-2 are included to help support a smoother, firmer-looking complexion.
Heptapeptide-8
Heptapeptide-8 is another peptide used to help improve the appearance of skin texture and resilience.
Together, these peptides work synergistically to support healthier-looking skin while complementing the rest of the formula.
Why Peptides Work Best When Paired With Supporting Ingredients
One of the biggest mistakes I see is focusing exclusively on peptides while ignoring the supporting ingredients that help maximise results.
In our Replenishing AM Cream and Radiant Facial Serum, the peptides are paired with:
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Sodium Hyaluronate (Hyaluronic Acid) for hydration
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Tetrahexyldecyl Ascorbate (Vitamin C) for antioxidant support
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CoEnzyme Q10 to help defend against environmental stressors
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Resveratrol for antioxidant protection
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Squalane and Jojoba Oil to support the skin barrier
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White Tea Extract, Sea Buckthorn and Pomegranate Seed Oil for additional antioxidant benefits
This combination helps create a more complete approach to supporting healthy-looking skin.
Who Should Use Peptides?
Peptides can be beneficial for most skin types, including:
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Dry skin
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Dehydrated skin
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Mature skin
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Sensitive skin
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Skin experiencing visible signs of ageing
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Those wanting a preventative skincare approach
Because peptides are generally well tolerated, they can often be incorporated into routines that already include ingredients such as Vitamin C, niacinamide or exfoliating acids.
Are Peptides Worth The Hype?
In my professional opinion, yes! but only when they're part of a thoughtfully formulated product.
Peptides aren't an overnight miracle ingredient, and they shouldn't be viewed as one.
However, when combined with hydration, antioxidant protection and barrier-supporting ingredients, peptides can become a valuable part of a long-term skincare strategy.
The goal isn't to chase the latest skincare trend.
The goal is to support healthier, stronger, more resilient skin over time.
And that's exactly where peptides shine.
About The Author
Hanna is the founder of KenzaKo and has over 20 years of experience across pharmaceutical, natural medicine and skincare industries. She holds a Bachelor of Business (Marketing & Management) and is passionate about creating evidence-informed skincare that combines clinically researched actives with skin-loving botanicals.
