Prequel

Prequel Redness Reform Sulfur Cleanser.

Cleansers

About this product

A sulfur-based foaming cleanser formulated with azelaic acid and soothing ingredients, designed to cleanse and calm redness-prone and rosacea-prone skin.

Full ingredients

Water (Aqua), Glycerin, Sodium Lauroyl Isethionate, Magnesium Aluminum Silicate, Decyl Glucoside, Cocamidopropyl Hydroxysultaine, Sulfur, Sodium Lauroyl Methyl Isethionate, Sodium Lauroamphoacetate, Azelaic Acid, Chamomilla Recutita (Matricaria) Flower Water, Osmanthus Fragrans Flower Extract, Quartz, Panthenol, Bisabolol, Aloe Barbadensis Leaf Juice, Centella Asiatica Extract, Polyglycerin-6, Saccharomyces/Zinc Ferment, Apricot Kernel Oil Polyglyceryl-6 Esters, Guaiazulene, Magnolol, Honokiol, Hydrolyzed Garcinia Mangostana Fruit Extract, Lauric Acid, Coconut Acid, Myristic Acid, Acacia Senegal Gum, Capric Acid, Xanthan Gum, Propanediol, Cocamide MIPA, Hydroxyacetophenone, Octenidine Hcl, Potassium Sorbate, Sodium Benzoate, Sodium Chloride, Sodium Polyacryloyldimethyl Taurate, Sodium Isethionate

Guru Score

82%

Yay

4 experts · Moderate agreement

What the gurus are saying

This sulfur cleanser wins praise for tackling redness and rosacea while avoiding the harsh smell and stripped feeling typical of sulfur products. The formula stacks sulfur with soothing actives (azelaic acid, shea, panthenol, aloe) that reviewers found reduce inflammation without harshness. Some apply it as a mask, letting a thick layer sit for a few minutes before rinsing.

Synthesized from 4 expert reviews · most recent take July 2026

What they liked

Gentle enough for sensitive, acne-prone skin
Works as both cleanser and quick mask
Calms redness without stripping

What they flagged

Can smell unpleasant to some

Best for

Sensitive skin Acne-prone skin

Type

CleansersFoam & mousse

Key actives

Azelaic acid

Formula notes

Fragrance-freeNo drying alcohol

Where to buy

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What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

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AliceintheRabbitHole

59k subs

✓Yay

"I'm using my Prequel Redness Reform Cleanser, you can use this as a mask but I'm just using it as a cleanser. Prequel came through so much for me, I feel like I was just looking for the perfect cleanser and they ended up having it."

All 4 takes from AliceintheRabbitHole

PM Routine: the BOOTCAMP edition! Getting my Skin in Shape Post-Stress

HONEST Ranking of Prequel Skincare (Too Honest?)

"The Redness Reform Sulfur Cleanser is incredible for my skin type, dry, acne prone, and sensitive. The 2.5% colloidal sulfur is such a good alternative to some of the more harsh and intense acne fighting ingredients. The con is it does smell bad, but to me it doesn't smell as bad as the L-ascorbic acid serum. I love that you can use this as a regular cleanser or leave it on as a [...] quick mask, with colloidal sulfur, azelaic acid, cica, alpha bisabolol, panthenol, and aloe vera."

Best VALUE Skincare (& worst too!)

"I love this brand so much. I talked about how wonderful it is to use, I love that it has both azelaic acid and sulfur, and this plus an oil based cleanser could just be everything I would ever need in terms of cleansing. What's extra fun about it is you can use it as a mask too, let it sit on your skin for a bit and then rinse off, and you get even more benefits from the actives because it's gentler since you ultimately wash it off."

NEW Affordable Skincare & More! Prequel's Incredible Cleanser, Pixi, Fails from Good Molecules...

"I genuinely think this is better than the Kate Somerville sulfur cleanser, even with less of that sulfur ingredient, because I swear it smells better and doesn't have as much of a smell. [...] It feels like a gentle and yet thorough cleanser and has a lot of calming ingredients in it. It's absolutely lovely, and it's also a more inexpensive product to start with. [...] My skin does not feel too dry after using it."

The Budget Dermatologist

724k subs

✓Yay

"Since I started using these, my skin has been so much less red than is average for me. [...] The reason it works so well for rosacea-type skin is that it has sulfur, which is kind of one of those catch-all ingredients that can help a wide variety of skin conditions: acne, rosacea, perioral dermatitis, seborrheic dermatitis. It also has azelaic acid. Do not sleep on azelaic acid. It's such a good ingredient for the skin, especially for redness-prone skin, and that's why it's in here."

No BS Beauty

89k subs

✓Yay

"It's got a lot of soothing ingredients in it [...] and I've really enjoyed the cleansers I've tried from Prequel so far."

Dr. Sam Ellis

898k subs

✓Yay

"You could use this as a morning cleanser or an evening cleanser. I've actually been loving using it in the morning because it sets my skin up to look its best throughout the day. [...] I'll take a pretty generous amount, work it into a rich lather, and then apply it to my face in the areas that I tend to get red, which is my cheeks, my nose, my chin, sometimes my forehead. And because this contains sulfur, I do keep it away from the eyes."

SponsoredFounder's own brand

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Azelaic acid

Azelaic acid has clinical evidence for both acne and rosacea, and it is one of the gentler options for calming redness while also working on marks left behind.

Source: DermNet

Humectants and emollients

Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.

Source: DermNet

Frequently asked.

What is Prequel Redness Reform Sulfur Cleanser?

A sulfur-based foaming cleanser formulated with azelaic acid and soothing ingredients, designed to cleanse and calm redness-prone and rosacea-prone skin.

Is Prequel Redness Reform Sulfur Cleanser worth it?

Yes. All 4 gurus who reviewed it give it their stamp of approval, for a Guru Score of 82%.

What is Prequel Redness Reform Sulfur Cleanser's Guru Score?

Prequel Redness Reform Sulfur Cleanser holds a Guru Score of 82%. That is our read on how warmly the experts talk about it, based on the verdicts of 4 expert reviewers we have collected.