Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Q + A Peptide Serum Versus REVOX B77 Just Peptides 10% Serum

Q + A Peptide Serum Versus REVOX B77 Just Peptides 10% Serum Detailed comparison of Q + A Peptide Serum versus REVOX B77 Just Peptides 10% Serum. This anti-aging serum is formulated around Aloe Barbadensis Leaf Juice Powder and Tripeptide-29 to soften the look

This source-based comparison does not add ratings or recommend a winner.

Q + A Peptide Serum Versus REVOX B77 Just Peptides 10% Serum Detailed comparison of Q + A Peptide Serum versus REVOX B77 Just Peptides 10% Serum. This anti-aging serum is formulated around Aloe Barbadensis Leaf Juice Powder and Tripeptide-29 to soften the look of wrinkles and hydrate skin. This anti-aging serum is formulated around Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles and refine skin texture. 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 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 Butylene Glycol Polysorbate 20 Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Pectin Hydrolyzed Vegetable Protein Serine Arginine Proline Phenoxyethanol PPG-1-PEG-9 Lauryl Glycol Ether Disodium EDTA Water, Glycerin, Butylene Glycol, Polysorbate 20, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Propylene Glycol, Sodium Hyaluronate, Xanthan Gum, Pectin, Hydrolyzed Vegetable Protein, Serine, Arginine, Proline, Phenoxyethanol, PPG-1-PEG-9 Lauryl Glycol Ether, Disodium EDTA 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. Propylene Glycol is a synthetic, colorless, odorless liquid that has been a staple in cosmetics for decades. It is a skin conditioning agent, humectant, and solvent. As a humectant, it draw water to the skin to reduce flaking and restore suppleness. It's also a solvent that helps dissolve other actives and keeps formulas stable across temperature changes. The CIR Expert Panel has confirmed this ingredient to be nontoxic and clinical studies show no sensitization at cosmetic use concentrations. True allergic reactions are quite rare: a 15-year retrospective study of 6,751 patients found only 0.31% had a positive reaction (and less than half were considered clinically relevant). It seemed that when sensitization does occur, it's most commonly linked to topical medication (like corticosteroids) and not cosmetics. Allergic contact dermatitis also appears largely limited to individuals with underlying skin conditions. Overall, propylene glycol is a well-studied ingredient that most people can tolerate without issue. 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