Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

iUNIK Propolis Vitamin Synergy Serum Versus Q + A Peptide Serum

iUNIK Propolis Vitamin Synergy Serum Versus Q + A Peptide Serum This calming serum is formulated around Hippophae Rhamnoides Fruit Extract and Niacinamide to calm redness and brighten dull-looking skin. This anti-aging serum is formulated around Aloe Barbadens

iUNIK Propolis Vitamin Synergy Serum Versus Q + A Peptide Serum

This calming serum is formulated around Hippophae Rhamnoides Fruit Extract and Niacinamide to calm redness and brighten dull-looking skin.

This anti-aging serum is formulated around Aloe Barbadensis Leaf Juice Powder and Tripeptide-29 to soften the look of wrinkles and hydrate skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Hippophae Rhamnoides Fruit Extract

1,2-Hexanediol

Niacinamide

Butylene Glycol

Propolis Extract

Sodium Hyaluronate

Glycosyl Trehalose

Hydrogenated Starch Hydrolysate

Dipropylene Glycol

Centella Asiatica Extract

Polygonum Cuspidatum Root Extract

Scutellaria Baicalensis Root Extract

Camellia Sinensis Leaf Extract

Chamomilla Recutita Flower Extract

Rosmarinus Officinalis Leaf Extract

Saccharomyces/Viscum Album Ferment Extract

Lactobacillus/Soybean Ferment Extract

Saccharomyces/Imperata Cylindrica Root Ferment Extract

Punica Granatum Fruit Extract

Ficus Carica Fruit Extract

Morus Alba Fruit Extract

Ginkgo Biloba Nut Extract

Hydroxyethylcellulose

Carbomer

Arginine

Dipotassium Glycyrrhizate

Allantoin

Adenosine

Citrus Aurantium Bergamia Fruit Oil

Water, Glycerin, Hippophae Rhamnoides Fruit Extract, 1,2-Hexanediol, Niacinamide, Butylene Glycol, Propolis Extract, Sodium Hyaluronate, Glycosyl Trehalose, Hydrogenated Starch Hydrolysate, Dipropylene Glycol, Centella Asiatica Extract, Polygonum Cuspidatum Root Extract, Scutellaria Baicalensis Root Extract, Camellia Sinensis Leaf Extract, Chamomilla Recutita Flower Extract, Rosmarinus Officinalis Leaf Extract, Saccharomyces/Viscum Album Ferment Extract, Lactobacillus/Soybean Ferment Extract, Saccharomyces/Imperata Cylindrica Root Ferment Extract, Punica Granatum Fruit Extract, Ficus Carica Fruit Extract, Morus Alba Fruit Extract, Ginkgo Biloba Nut Extract, Hydroxyethylcellulose, Carbomer, Arginine, Dipotassium Glycyrrhizate, Allantoin, Adenosine, Citrus Aurantium Bergamia Fruit Oil

Propylene Glycol

Betaine

Pentylene Glycol

Xanthan Gum

Aloe Barbadensis Leaf Juice Powder

Sodium Phytate

Lonicera Caprifolium Flower Extract

Biosaccharide Gum-1

Lonicera Japonica Flower Extract

Sodium Levulinate

Tripeptide-29

Sodium Ascorbyl Phosphate

Magnesium PCA

Lactic Acid

Glyceryl Caprylate

Cocoyl Proline

Sodium Anisate

Leuconostoc/Radish Root Ferment Filtrate

Citric Acid

Water, Propylene Glycol, Betaine, Pentylene Glycol, Xanthan Gum, Aloe Barbadensis Leaf Juice Powder, Sodium Phytate, Glycerin, Lonicera Caprifolium Flower Extract, Biosaccharide Gum-1, Lonicera Japonica Flower Extract, Sodium Levulinate, Tripeptide-29, Sodium Hyaluronate, Sodium Ascorbyl Phosphate, Magnesium PCA, Lactic Acid, Glyceryl Caprylate, Cocoyl Proline, Sodium Anisate, Leuconostoc/Radish Root Ferment Filtrate, Citric Acid

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Alternatives

Ingredients Explained

These ingredients are found in both products.

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

Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.

Topically, glycerin does several things at once:

Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.

Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.

This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.

Just know very high concentrations (>40%) can feel tacky in low humidity.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

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.

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!

Similar Comparisons

The reference edit

Ingredients, questions
& further reading.

Connected source records selected through this article’s public topic index.

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Formula cabinet

Ingredients & structured notes

Ingredient index

Ingredients Explained

  1. 01These ingredients are found in both products.
  2. 02Ingredients higher up in an ingredient list are typically present in a larger amount.
  3. 03Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
  4. 04Topically, glycerin does several things at once:
  5. 05Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
  6. 06Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
  7. 07This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
  8. 08Just know very high concentrations (>40%) can feel tacky in low humidity.
  9. 09Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
  10. 10Pentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula:
  11. 11Research on alkanediols (the family pentylene glycol belongs to) show they work by disrupting microbial cell membranes. This disruption helps the primary preservative system in a product work more effectively at lower doses.
  12. 12On the safety side, the Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe as used in current cosmetic practices + concentrations.
  13. 13Typical use levels in a formula run about 1-5%.
  14. 14Sodium 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.
  15. 15In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
  16. 16Interestingly, the size of the molecule affects its behavior:
  17. 17Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
  18. 18Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.
  19. 19You'll typically see concentrations between 0.1-2% for this ingredient.
  20. 20Water. 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.
Source · skinsort.com
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Product index

Related product references

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Comparison edit

Read side by side