IT Cosmetics Bye Bye Breakout Salicylic Acid Acne Serum Versus NAELI Niacinamide / Azelaic Acid Brightening & Dark Spot Face Serum
This acne treatment is formulated around Niacinamide and Lactic Acid to clear breakouts and balance excess oil.
This brightening serum is formulated around Niacinamide and Azelaic Acid to fade the look of dark spots and brighten dull-looking skin.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
HumectantNiacinamide
SmoothingLactic Acid
BufferingSodium Hydroxide
BufferingSalicylic Acid
MaskingZinc PCA
HumectantAloe Barbadensis Leaf Juice
Skin ConditioningButylene Glycol
HumectantChlorphenesin
AntimicrobialSodium Hyaluronate
HumectantTrisodium Ethylenediamine Disuccinate
ChelatingAlteromonas Ferment Extract
Skin ConditioningCitric Acid
BufferingPotassium Sorbate
PreservativeSodium Benzoate
MaskingWater
Skin ConditioningAloe Barbadensis Leaf Juice
Skin ConditioningNiacinamide
SmoothingZinc PCA
HumectantAzelaic Acid
BufferingPropanediol
SolventPotassium Azeloyl Diglycinate
Skin ConditioningKojic Acid
AntioxidantHyaluronic Acid
HumectantSodium Ascorbyl Phosphate
AntioxidantGlycyrrhiza Glabra Root Extract
BleachingGlutathione
Allantoin
Skin ConditioningPhenylethyl Resorcinol
AntioxidantSqualane
EmollientAscorbyl Palmitate
AntioxidantArbutin
AntioxidantPunica Granatum Extract
AstringentResveratrol
AntioxidantCitrus Aurantium Dulcis Oil
MaskingFragaria Ananassa Fruit Extract
Skin ConditioningSodium Metabisulfite
AntioxidantPhenoxyethanol
PreservativeEthylhexylglycerin
Skin ConditioningXanthan Gum
EmulsifyingWater, Aloe Barbadensis Leaf Juice, Niacinamide, Zinc PCA, Azelaic Acid, Propanediol, Potassium Azeloyl Diglycinate, Kojic Acid, Hyaluronic Acid, Sodium Ascorbyl Phosphate, Glycyrrhiza Glabra Root Extract, Glutathione, Allantoin, Phenylethyl Resorcinol, Squalane, Ascorbyl Palmitate, Arbutin, Punica Granatum Extract, Resveratrol, Citrus Aurantium Dulcis Oil, Fragaria Ananassa Fruit Extract, Sodium Metabisulfite, Phenoxyethanol, Ethylhexylglycerin, Xanthan Gum
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Aloe Barbadensis Leaf Juice is the filtered, stabilized liquid pressed from the inner gel of the aloe vera leaf.
In cosmetics, it shows up as either soothing active or a water-replacement base. It is roughly 98-99% water and the last 1-2% is an interesting mix of polysaccharides, amino acids, vitamins, minerals, and enzymes.
The polysaccharides do most of the work: they bind water at the skin surface for a light, non-greasy hydration boost. And one of the polysaccharides, glycomannan, is linked to fibroblast stimulation + collagen synthesis. This is also why aloe has such a long track record in wound and burn healing.
This ingredient is also calming with anti-inflammatory and mild antimicrobial activity, making it a great pick for sensitive, irritated, or post-sun skin.
Realistic expectations matter though; the solid evidence is mostly limited to hydration, soothing, and wound support. Deeper claims about anti-aging or sun protection are not well backed, and science reviews note it does not prevent radiation-induced skin injury.
Because it plays well with almost everything, it's commonly used as a base alongside other actives like niacinamide or vitamin C.
Typical usage concentrations range from 0.5% (where hydration benefits already show up) all the way to 90%+ (where it replaces water as the main base).
The safety for this ingredient is well-establish as well. Overall, this is a great supporting ingredient for those who want a boost in hydration.
Learn more about Aloe Barbadensis Leaf JuiceNiacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging.
And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin.
You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this.
In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it.
If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes.
In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution).
Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This leads to stronger, healthier, and younger looking skin.
Another name for vitamin B3 is nicotinamide. This vitamin is water-soluble and our bodies don't store it. We obtain Vitamin B3 from either food or skincare. Meat, fish, wheat, yeast, and leafy greens contain vitamin B3.
The type of niacinamide used in skincare is synthetically created.
Learn more about NiacinamideWater. 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 WaterZinc PCA is a clever two-in-one molecule: the zinc salt of pyrrolidone carboxylic acid (PCA).
Think of it as two useful things bonded together; the PCA half is one of your skin's own natural moisturizing factors (NMF) so it helps hold water in the upper layers. On the other hand, the zinc half does the heavy lifting on oil and bacteria.
The zinc part slows down an enzyme that turns testosterone into DHT, the hormone that tells your oil glands to pump out more sebum. Less of that signal means less oil. It also gently fights acne-causing bacteria and soothes redness/irritation.
This is why Zinc PCA often shows up in products for oily, breakout-prone skin and greasy scalps.
One lab study also hinted it might have a small anti-aging perk because it seemed to protect collagen from UVA damage and even helped the skin make a bit more of it. That last bit is still early research done in a dish and not real skin, so take it as a nice bonus rather than a promise for now.
As for scar healing, the picture is more "maybe" than a firm yes. Zinc itself plays a real role in wound repair because it is a cofactor for the enzymes involved in collagen building, calming inflammation, and helping new skin cells cover a wound. Lower zinc levels are also linked to slower healing.
Most of the scar healing research is on zinc oxide or oral zinc rather than zinc PCA specifically, with a focus on healing fresh wounds instead of scars that are already there.
Direct evidence that zinc PCA improves the look of established scars is still limited at this time. Though it would be fair to say zinc PCA supports the general skin-repair environment thanks to its zinc content .
This ingredient is water-soluble and plays nicely with other actives like niacinamide and salicylic acid. It works best at mildly acidic formulas (~4-6 pH) and is effective at low levels. Around 0.1% is enough to be active and finished products commonly use it anywhere up to 4%.
Overall, this is a well-tolerated, low-drama multitasker that suits oily and acne-prone skin.
Learn more about Zinc PCA