Tahnyc Biolumen Intensive Peptide Treatment Versus Tahnyc Contour Concentrated 10 Peptide Serum

Tahnyc Biolumen Intensive Peptide Treatment Versus Tahnyc Contour Concentrated 10 Peptide Serum

This brightening serum is formulated around Tetrapeptide-30 to fade the look of dark spots.

This anti-aging serum is formulated around Acetyl Hexapeptide-8 and Alpha-Arbutin to soften the look of wrinkles and fade the look of dark spots.

What's inside

Key Ingredients

Benefits

Ingredients Side-by-side

Water

Nonapeptide-1

Tetrapeptide-30

Acetyl Tetrapeptide-2

Propanediol

Sodium Hyaluronate

Sodium PCA

1,2-Hexanediol

Caprylyl Glycol

Hydroxyacetophenone

Tremella Fuciformis Extract

Tetrasodium Glutamate Diacetate

Water, Nonapeptide-1, Tetrapeptide-30, Acetyl Tetrapeptide-2, Propanediol, Sodium Hyaluronate, Sodium PCA, 1,2-Hexanediol, Caprylyl Glycol, Hydroxyacetophenone, Tremella Fuciformis Extract, Tetrasodium Glutamate Diacetate

Tetrapeptide-21

Acetyl Hexapeptide-8

Caprooyl Tetrapeptide-3

N-Prolyl Palmitoyl Tripeptide-56 Acetate

Hexapeptide-9

Acetyl Tetrapeptide-9

Acetyl Tetrapeptide-40

Acetyl Hexapeptide-38

Alpha-Arbutin

Water, Propanediol, Tetrapeptide-21, Acetyl Hexapeptide-8, Caprooyl Tetrapeptide-3, N-Prolyl Palmitoyl Tripeptide-56 Acetate, Hexapeptide-9, Acetyl Tetrapeptide-9, Acetyl Tetrapeptide-40, Acetyl Tetrapeptide-2, Acetyl Hexapeptide-38, Tetrapeptide-30, Alpha-Arbutin, Sodium PCA, Sodium Hyaluronate, 1,2-Hexanediol, Caprylyl Glycol, Hydroxyacetophenone

Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.

It is a:

Humectant, drawing moisture into the skin

Emollient, helping to soften skin

Solvent, dispersing and stabilizing formulas

Preservative booster, enhancing the antimicrobial activity of other preservatives

This peptide is more commonly known as Thymulen 4 BG.

It is derived from a youth hormone called thymopoietin. Thymopoietin helps regulate the immune system and decreases naturally with age.

According to the manufacturer, this peptide boosts the skin's immune defenses and regenerates the outer layers of skin.

Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.

Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.

Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).

Hydroxyacetophenone is a small phenolic molecule that earns its place in a formulas as an antioxidant and preservative booster.

As a phenol, it is able to neutralize free radicals to protect both the product and the skin from oxidative stress.

Though it can't kill microbes on its own, it works as a good supporting agent when combined with other preservatives like Phenoxyethanol or 1,2-Hexanediol.

This ingredient naturally occurs as piceol in Norwegian spruce needles (~0.4-1.1% dry weight and in cloudberries). Though the cosmetic-grade material is synthesized for purity and consistency.

You'll usually see it used at low levels and suppliers recommend up to 1% added to a water phase.

Safety testing was done at concentrations like 0.05% in SPF products and 0.5% in a Human Repeated Insult Patch Test. The safety evidence is assuring; this ingredient is safe for cosmetics in current use and also holds safety status as a food flavoring as well.

An honest caveat: the "soothing" and "anti-inflammatory" claims come mostly from supplier marketing rather than published clinical trials. The Cosmetic Ingredient Review's own literature search found no useful efficacy studies on this ingredient.

So the antioxidant and preservative-boosting roles are the well supported ones while the calming benefit is plausible but thinly evidenced.

Overall, this is a well-tolerated, low-irritation multitasker that quietly helps a formula stay fresh and stable.

Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.

It’s often used to:

Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.

Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.

In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.

Interestingly, the size of the molecule affects its behavior:

Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.

Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.

You'll typically see concentrations between 0.1-2% for this ingredient.

Sodium PCA (the salt of PCA) is one of the most well-established humectants in skincare.

Why is it so special? Your skin already makes it naturally; it's a natural component of your skin's Natural Moisturizing Factor (NMF), or the mix of water-binding compounds inside your skin cells that keeps things soft and hydrated.

As a cosmetic ingredient, it grabs water and holds it in the upper layers of skin to smooth roughness and ease dehydration.

There's some clinical support for the NMF approach with a study showing that a cream built to mimic the skin's NMF significantly boosted hydration.

Safety-wise, this ingredient non-irritating, non-comedogenic, and non-phototoxic in testing, with minimal skin absorption.

It also works really well with other hydrators like glycerin or hyaluronic acid, and typical usage is somewhere between 0.2-4%.

Tetrapeptide-30 is a synthetic peptide.

According to a manufacturer, this peptide helps with skin brightening by blocking the process of skin darkening when skin is exposed to UV.

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!

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