Geek & Gorgeous C-Glow 15% Vitamin C Serum Versus Garnier 3.5% Vitamin C, Niacinamide, Salicylic Acid, Brightening & Anti Dark Spot Serum
This brightening serum is formulated around Ascorbic Acid and Ferulic Acid to brighten dull-looking skin and soften the look of wrinkles.
This brightening serum is formulated around Niacinamide and 3-O-Ethyl Ascorbic Acid to brighten dull-looking skin and fade the look of dark spots.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
No concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Alcohol
Antimicrobial
Dipropylene Glycol
HumectantButylene Glycol
Humectant
Niacinamide
Smoothing
PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin
HumectantCeramide AP
Skin Conditioning
Hydroxyethylpiperazine Ethane Sulfonic Acid
BufferingBis-PEG-18 Methyl Ether Dimethyl Silane
EmollientIsononyl Isononanoate
Emollient3-O-Ethyl Ascorbic Acid
Skin Conditioning
Citrus Junos Fruit Extract
Skin ConditioningCitrus Limon Fruit Extract
Masking
Sodium Citrate
BufferingSodium Hyaluronate
Humectant
Adenosine
Skin Conditioning
Phenylethyl Resorcinol
Antioxidant
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingDisodium EDTA
Hydrogenated Lecithin
Emulsifying
Citric Acid
Buffering
Maltodextrin
Absorbent
Xanthan Gum
EmulsifyingOxothiazolidinecarboxylic Acid
Skin ConditioningTocopherol
Antioxidant
Tocopheryl Acetate
Antioxidant
Salicylic Acid
Masking
Phenoxyethanol
Preservative
Linalool
Perfuming
Geraniol
Perfuming
Limonene
Perfuming
Benzyl Alcohol
Perfuming
Benzyl Salicylate
Perfuming
Parfum
Masking
Water, Glycerin, Alcohol, Dipropylene Glycol, Butylene Glycol, Niacinamide, PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin, Ceramide AP, Hydroxyethylpiperazine Ethane Sulfonic Acid, Bis-PEG-18 Methyl Ether Dimethyl Silane, Isononyl Isononanoate, 3-O-Ethyl Ascorbic Acid, Citrus Junos Fruit Extract, Citrus Limon Fruit Extract, Sodium Citrate, Sodium Hyaluronate, Adenosine, Phenylethyl Resorcinol, Ammonium Polyacryloyldimethyl Taurate, Disodium EDTA, Hydrogenated Lecithin, Citric Acid, Maltodextrin, Xanthan Gum, Oxothiazolidinecarboxylic Acid, Tocopherol, Tocopheryl Acetate, Salicylic Acid, Phenoxyethanol, Linalool, Geraniol, Limonene, Benzyl Alcohol, Benzyl Salicylate, Parfum
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Learn more about Butylene GlycolThis ingredient is a water-soluble emollient and is derived from glycerin. It also has surfactant properties and can help dissolve oils or actives in water-based products.
According to the manufacturer, this ingredient:
- Moisturizes without stickiness or greasiness.
- Improves the penetration of water-based ingredients while reducing penetration of oil-based ones to help balance delivery in formulations
Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
Learn more about PhenoxyethanolTocopherol is a fat-soluble antioxidant known as Vitamin E.
You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.
Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.
It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.
This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.
This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.
In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.
Concentrations usually range from 0.1-1% in most leave-on products.
Learn more about TocopherolWater. 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!
Learn more about Water
