Paula's Choice Skin Perfecting 25% AHA + 2% BHA Exfoliant Peel Versus alpyn beauty Wild Huckleberry 8-Acid Polishing Peel

Paula's Choice Skin Perfecting 25% AHA + 2% BHA Exfoliant Peel Versus alpyn beauty Wild Huckleberry 8-Acid Polishing Peel

This smoothing exfoliator is formulated around Glycolic Acid and Lactic Acid to refine skin texture and brighten dull-looking skin.

This wash off mask is formulated around Lactic Acid to exfoliate and smooth skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Aminomethyl Propanol

Glycolic Acid

Lactic Acid

Mandelic Acid

Isoamyl Laurate

Tartaric Acid

Propanediol

Salicylic Acid

Malic Acid

Butylene Glycol

Clitoria Ternatea Flower Extract

Sodium Hyaluronate

Glycyrrhetinic Acid

Glycerin

Tocopherol

Bisabolol

Allantoin

Hydroxyethylcellulose

Hydrogenated Lecithin

Xanthan Gum

Polyglyceryl-4 Laurate

Polyacrylate Crosspolymer-6

Titanium Dioxide

Mica

Phenoxyethanol

Water, Aminomethyl Propanol, Glycolic Acid, Lactic Acid, Mandelic Acid, Isoamyl Laurate, Tartaric Acid, Propanediol, Salicylic Acid, Malic Acid, Butylene Glycol, Clitoria Ternatea Flower Extract, Sodium Hyaluronate, Glycyrrhetinic Acid, Glycerin, Tocopherol, Bisabolol, Allantoin, Hydroxyethylcellulose, Hydrogenated Lecithin, Xanthan Gum, Polyglyceryl-4 Laurate, Polyacrylate Crosspolymer-6, Titanium Dioxide, Mica, Phenoxyethanol

Hydrated Silica

Cetearyl Alcohol

Hydroxypropyl Starch Phosphate

Glyceryl Stearate Se

Helianthus Annuus Seed Oil

Bentonite

Vaccinium Uliginosum Berry Extract

Salix Alba Extract

Bambusa Arundinacea Stem Extract

Sodium Stearoyl Lactylate

Sodium Phytate

Azelaic Acid

Ferulic Acid

Aloe Barbadensis Leaf Juice

Carrageenan

Glucose

Arnica Montana Flower Extract

Simmondsia Chinensis Seed Wax

Borago Officinalis Extract

Calendula Officinalis Flower Extract

Chamomilla Recutita Flower Extract

Salvia Officinalis Leaf Extract

Eclipta Prostrata Extract

Melia Azadirachta Leaf Extract

Moringa Oleifera Seed Oil

Pyrus Malus Fruit Extract

Lactobacillus/Pumpkin Ferment Extract

Dehydroacetic Acid

Benzyl Alcohol

Menthyl Lactate

Lactobacillus/Capsicum Frutescens Fruit Ferment Extract

Potassium Sorbate

Vaccinium Myrtillus Fruit Extract

Saccharum Officinarum Extract

Citric Acid

Citrus Aurantium Dulcis Fruit Extract

Citrus Limon Fruit Extract

Acer Saccharum Extract

Decyl Glucoside

Lauryl Glucoside

Vaccinium Angustifolium Fruit Extract

Caprylic/Capric Triglyceride

Citrus Aurantium Dulcis Peel Extract

Vanilla Planifolia Fruit Extract

Rosa Damascena Extract

Rubus Idaeus Fruit Extract

Musa Sapientum Fruit Extract

Citrus Aurantium Amara Leaf/Twig Extract

Cinnamomum Camphora Linalooliferum Wood Extract

Alcohol

Vitis Vinifera Fruit Cell Extract

Isomalt

Lecithin

Vaccinium Macrocarpon Seed Powder

Water, Glycerin, Hydrated Silica, Cetearyl Alcohol, Hydroxypropyl Starch Phosphate, Glyceryl Stearate Se, Helianthus Annuus Seed Oil, Bentonite, Vaccinium Uliginosum Berry Extract, Salix Alba Extract, Bambusa Arundinacea Stem Extract, Xanthan Gum, Sodium Stearoyl Lactylate, Titanium Dioxide, Sodium Phytate, Azelaic Acid, Ferulic Acid, Sodium Hyaluronate, Aloe Barbadensis Leaf Juice, Carrageenan, Glucose, Arnica Montana Flower Extract, Simmondsia Chinensis Seed Wax, Borago Officinalis Extract, Calendula Officinalis Flower Extract, Chamomilla Recutita Flower Extract, Salvia Officinalis Leaf Extract, Eclipta Prostrata Extract, Melia Azadirachta Leaf Extract, Moringa Oleifera Seed Oil, Pyrus Malus Fruit Extract, Lactobacillus/Pumpkin Ferment Extract, Dehydroacetic Acid, Benzyl Alcohol, Menthyl Lactate, Lactobacillus/Capsicum Frutescens Fruit Ferment Extract, Potassium Sorbate, Lactic Acid, Glycolic Acid, Vaccinium Myrtillus Fruit Extract, Saccharum Officinarum Extract, Citric Acid, Citrus Aurantium Dulcis Fruit Extract, Citrus Limon Fruit Extract, Acer Saccharum Extract, Tartaric Acid, Malic Acid, Decyl Glucoside, Lauryl Glucoside, Vaccinium Angustifolium Fruit Extract, Caprylic/Capric Triglyceride, Citrus Aurantium Dulcis Peel Extract, Vanilla Planifolia Fruit Extract, Rosa Damascena Extract, Rubus Idaeus Fruit Extract, Musa Sapientum Fruit Extract, Citrus Aurantium Amara Leaf/Twig Extract, Cinnamomum Camphora Linalooliferum Wood Extract, Alcohol, Vitis Vinifera Fruit Cell Extract, Isomalt, Lecithin, Vaccinium Macrocarpon Seed Powder

Reviews

Be the first to review

Alternatives

Ingredients Explained

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.

Glycolic Acid is arguably the most famous alpha hydroxy acid (AHA) with tons of research backing its benefits.

It is found naturally in sugar cane but the form used in skincare is usually synthetic for purity and stability.

Glycolic acid removes the top layer of dead skin cells to allow newer and fresher ones to emerge.

AHAs work by breaking down the structural “glue” that holds old skin cells in place. When that buildup is gone, your skin can renew itself more efficiently.

Research also shows glycolic acid stimulates collagen production, helping to firm and thicken the skin over time. This is one of its biggest advantages over other AHAs.

Overall, glycolic acid helps with:

Fun fact: Glycolic acid boosts skin hydration by helping it produce molecules that increase hyaluronic acid naturally.

To work best, glycolic acid products should have a pH between 3-4 (that’s where exfoliation is most effective but still gentle on skin).

The pH and concentration of a product are key to its effectiveness:

It is normal to feel a slight stinging sensation when using glycolic acid. This usually fades as your skin adjusts.

Because glycolic acid has the smallest molecular size in the AHA family, it can penetrate deeper, which enhances its effectiveness but also makes it more likely to irritate sensitive skin.

If your skin is very sensitive or prone to rosacea, glycolic acid may be too strong; in that case, try milder options like lactic acid or a PHA instead.

Recent studies suggest glycolic acid might even help protect against UV damage. But don’t skip sunscreen! Freshly exfoliated skin is more sensitive to the sun.

Glycolic acid is a skincare superstar. It smooths, brightens, hydrates, and firms the skin. Unless you’re highly sensitive, it’s well worth adding to your routine.

Read more about some other popular AHA's here:

Lactic Acid is another well-loved alpha hydroxy acid (AHA). It is gentler than glycolic acid but still highly effective.

Its main role is to exfoliate the surface of the skin by loosening the “glue” that holds dead skin cells together. Shedding those old cells leads to smoother, softer, and more even-toned skin.

Because lactic acid molecules are larger than glycolic acid, they don’t penetrate as deeply. This means they’re less likely to sting or irritate, making it a great choice for beginners or those with sensitive skin.

Like glycolic acid, it can:

Lactic acid also acts as a humectant (like hyaluronic acid). It can draw water into the skin to improve hydration and also plays a role in the skin's natural moisturizing factor (NMF) in the form of sodium lactate.

Studies show it can boost ceramide production to strengthen the skin barrier and even help balance the skin’s microbiome.

To get results, choose products with a pH between 3-4.

Lower strengths (5-12%) focus on surface exfoliation; higher strengths (12% and up) can reach deeper in the dermis (deeper, supportive layer) to improve skin texture and firmness over time.

Though it was originally derived from milk, most modern lactic acid used in skincare is vegan. It is made through non-dairy fermentation to create a bio-identical and stable form suitable for all formulations.

When lactic acid shows up near the end of an ingredient list, it usually means the brand added just a tiny amount to adjust the product’s pH.

Legend has it that Cleopatra used to bathe in sour milk to help reduce wrinkles.

Lactic acid is truly a gentle multitasker: it exfoliates, hydrates, strengthens, and brightens. It's a great ingredient for giving your skin a smooth, glowing, and healthy look without the harshness of stronger acids.

Malic Acid is an acid with both AHA and BHA properties, but is considered an AHA because its AHA properties are stronger.

It can be naturally found in unripe fruit and especially apples (its name from the latin word "malum", meaning apple!).

Like other AHAs, malic acid gently removes the top layer of dead skin cells to reveal smoother, brighter skin underneath.

Though it’s considered milder and less potent than glycolic or lactic acid, it can help improve:

Due to its larger molecular structure, it penetrates the skin more slowly and is often used in combination with other AHAs to enhance their overall effectiveness.

Malic acid often plays a role in balancing a product’s pH and is usually included in small amounts (around 1-2%) as a supporting exfoliant.

As with all exfoliating acids, you should wear sunscreen daily when using malic acid to protect your newly resurfaced skin.

Fun fact: Malic acid is the compound responsible for the tart flavor of apples and other sour fruits.

While research on malic acid is limited compared to glycolic or lactic acid, it’s still a safe and mild exfoliant.

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.

Tartaric acid is an AHA with exfoliating and antioxidant properties. It is found in many fruits, such as tamarind, grapes, bananas, and avocados.

AHAs provide chemical exfoliation, helping to improve skin tone and texture.

Tartaric acid is not as well studied as other AHAs, such as glycolic acid.

Titanium Dioxide (TD) is a mineral UV filter widely used in sunscreens and cosmetics.

It's one of only two UV filters officially classified as "mineral" by regulatory agencies (the other being Zinc Oxide).

A really common myth is that mineral filters work by reflecting UV light off your skin like tiny mirrors.

They don't only do that; modern research shows TD protects mostly by absorbing UV radiation, the same way chemical filters do.

When researchers measured this, reflection accounted for only about 4-5% of the protection (and less than SPF 2 on its own). The other ~95% comes from absorption: the UV photons hit the particle and their energy gets soaked up by its semiconductor band gap rather than bouncing off.

So "reflects vs. absorbs" was never really the right way to split mineral from chemical filters.

TD gives broad-spectrum protection that's strongest in the UVB and UVA-2 range and weaker in the UVA-1 range. Its UVA protection isn't quite as strong as Zinc Oxide's which is why you'll often see the two paired together.

Together, they make a solid broad-spectrum system.

TD is a great pick for sensitive, acne-prone, or redness-prone skin because it's non-irritating and chemically inert. Regulatory reviews classify it as a non-sensitizer and mild-to-non-irritant.

It's also unlikely to cause the "eye sting" some chemical filters are known for.

The main trade-off is cosmetic; TD can leave a white cast and has a thicker texture. This is why mineral sunscreens are often less cosmetically elegant than chemical or hybrid formulas (and harder to shade-match on deeper skin tones).

Formulators often use micronized or nano-sized TD to cut down on white case and improve spreadability. Smaller particles scatter less visible light so the formula looks less chalky while still filtering UV.

TD is almost always bundled with coatings like Alumina, Silica, Stearic Acid, or Dimethicone. These coatings do two important jobs:

TD can be used at up to 25% in a finished sunscreen; this is the regulatory ceiling in both the US and the EU.

In practice, the amount in any given product varies a lot depending on the target SPF and whether it's paired with other UV filters.

TD is one of the most heavily vetted sunscreen ingredients out there. It is approved as a UV filter in all major markets worldwide, including the US, EU, UK, Japan, Korea, China, Australia, and Canada.

The safety evidence is solid. There was an old worry that nano particles might absorb through skin into the body but multiple studies (including on damaged, sunburned, and UV-irradiated skin) have shown that TD stays on the surface and the layer of dead skin cells on top of everything else.

There's also no evidence of carcinogenicity, mutagenicity, or reproductive toxicity from dermal exposure of this ingredient.

For those who have seen the headline about a 2022 EU ban on TD, that was on TD as a food additive (a complete separate use from topical sunscreen).

There are ongoing questions about how nano-TD might affect marine ecosystems. As of now, there has been no conclusive evidence that any form of TD (or any other sunscreen filter) harms coral reefs or marine life.

The science is still developing and it's a space worth watching rather than packing over.

However, several destinations have reef-safety sunscreen rules that restrict certain chemical filters and steer visitors toward mineral, non-nano options. If you're traveling somewhere with these rules, a non-nano mineral sunscreen is the safe bet.

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!

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.

Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.

Similar Comparisons