REVOX B77 JUST Azelaic Acid 10% Brightening Solution Versus REVOX B77 JUST Collagen Amino Acids + HA
REVOX B77 JUST Azelaic Acid 10% Brightening Solution Versus REVOX B77 JUST Collagen Amino Acids + HA This brightening treatment is formulated around Azelaic Acid to brighten dull-looking skin and calm redness. This hydrating serum is formulated around Urea and
REVOX B77 JUST Azelaic Acid 10% Brightening Solution Versus REVOX B77 JUST Collagen Amino Acids + HA
This brightening treatment is formulated around Azelaic Acid to brighten dull-looking skin and calm redness.
This hydrating serum is formulated around Urea and Sodium Hyaluronate to hydrate skin and strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Azelaic Acid
Isododecane
Dimethicone/Bis-Isobutyl PPG-20 Crosspolymer
Ethylhexyl Stearate
Ethoxydiglycol
Isopropyl Myristate
Ammonium Acryloyldimethyltaurate/Vp Copolymer
PPG-1-PEG-9 Lauryl Glycol Ether
Phenoxyethanol
Disodium EDTA
Water, Azelaic Acid, Isododecane, Dimethicone/Bis-Isobutyl PPG-20 Crosspolymer, Ethylhexyl Stearate, Ethoxydiglycol, Isopropyl Myristate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, PPG-1-PEG-9 Lauryl Glycol Ether, Phenoxyethanol, Disodium EDTA
Urea
Glycerin
Caprylic/Capric Triglyceride
Cetearyl Alcohol
Glyceryl Stearate
Ceteareth-20
Sodium Hyaluronate
Collagen Amino Acids
Allantoin
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Triethanolamine
Water, Urea, Glycerin, Caprylic/Capric Triglyceride, Cetearyl Alcohol, Glyceryl Stearate, Ceteareth-20, Sodium Hyaluronate, Collagen Amino Acids, Phenoxyethanol, Allantoin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Triethanolamine
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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.
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.
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!