The INKEY List Collagen Peptide Serum Versus Q + A Collagen Booster Serum

The INKEY List Collagen Peptide Serum Versus Q + A Collagen Booster Serum Detailed comparison of The INKEY List Collagen Peptide Serum versus Q + A Collagen Booster Serum. This anti-aging serum is formulated around Palmitoyl Tetrapeptide-7 to soften the look of wrinkles and refine skin texture. No key ingredients Water Glycerin Butylene Glycol Propanediol Phenoxyethanol Hydroxyethylcellulose Sodium Phytate Citric Acid Leuconostoc/Radish Root Ferment Filtrate Carbomer Hyaluronic Acid Sodium Lactate Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine Palmitoyl Dipeptide-5 Diaminohydroxybutyrate Polysorbate 20 Polysorbate 60 Disodium Phosphate Sodium Phosphate Palmitoyl Tetrapeptide-7 Palmitoyl Tripeptide-1 Water, Glycerin, Butylene Glycol, Propanediol, Phenoxyethanol, Hydroxyethylcellulose, Sodium Phytate, Citric Acid, Leuconostoc/Radish Root Ferment Filtrate, Carbomer, Hyaluronic Acid, Sodium Lactate, Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine, Palmitoyl Dipeptide-5 Diaminohydroxybutyrate, Polysorbate 20, Polysorbate 60, Disodium Phosphate, Sodium Phosphate, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1 Propylene Glycol Betaine Pentylene Glycol Pullulan Collagen Nannochloropsis Oculata Extract Biosaccharide Gum-1 Gleditsia Triacanthos Seed Extract Lonicera Caprifolium Flower Extract Lonicera Japonica Flower Extract Sodium Gluconate Glyceryl Caprate Sodium Hydroxide Water, Propylene Glycol, Betaine, Pentylene Glycol, Pullulan, Collagen, Nannochloropsis Oculata Extract, Biosaccharide Gum-1, Gleditsia Triacanthos Seed Extract, Lonicera Caprifolium Flower Extract, Lonicera Japonica Flower Extract, Glycerin, Carbomer, Sodium Gluconate, Leuconostoc/Radish Root Ferment Filtrate, Glyceryl Caprate, Phenoxyethanol, Sodium Hydroxide, Citric Acid Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture. Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%. It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier. Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%. A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions. Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes. Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath. However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products. Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH. In skincare formulas, citric acid can: While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants. Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations. Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger. However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure. 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