All scans / Serums / Prequel Multi-Quench Polyglutamic Acid Serum
Prequel Multi-Quench Polyglutamic Acid Serum ingredients: is it worth it?
A competent hydration serum—not a transformative treatment.
A competent hydration serum—not a transformative treatment.
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The efficacy score of 3.9/5 reflects a well-built humectant system with glycerin in position 2, polyglutamic acid in position 4, additional glycols, erythritol, and ectoin; these can increase water retention and reduce dehydration-related tightness. The formula's stated pH of approximately 5.5 is skin-compatible, and it avoids fragrance and denatured alcohol, supporting tolerability. However, the formula is almost entirely hydration-focused, with no retinoid, niacinamide, vitamin C, exfoliating acid, ceramide system, or other high-evidence treatment active. The marketed 1% pure PGA plus 3% PGA complex is the main efficacy driver, while hibiscus extract and tocopherol are secondary rather than reasons to expect major anti-aging or brightening results. The official product page lists the serum at $28 and describes it as fragrance-free with 1% pure PGA plus a 3% PGA complex.
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DemythSkin rates Prequel Multi-Quench Polyglutamic Acid Serum 3.9/5 for efficacy and 4.7/5 for safety.
ACTIVE INGREDIENTS BY TIER
Gold Standards
High clinical proof | Skin-transformativeReliable
Proven resultsPotent
Developing evidenceOverhyped | Marketing
Hype | Limited dataDocumented Irritants
Evidence-backed flagFORMULATION BASE (12)⌄
FULL INGREDIENT LIST⌄
Water (Aqua), Glycerin, Butylene Glycol, Polyglutamic Acid, 1,2-Hexanediol, Ectoin, Hibiscus Sabdariffa Fruit Extract, Erythritol, Phenoxyethanol, Propanediol, Xanthan Gum, Caprylyl Glycol, Carbomer, Ethylhexylglycerin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tocopherol, Citric Acid, Sodium Hydroxide. Due to innovative updates and regulatory guidelines that can change periodically, our ingredient lists shown here may vary slightly from our packaging and distributor websites. pH Level: 5.5 +/- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Acidic Neutral Alkaline MULTI-QUENCH SERUM
WHAT EACH INGREDIENT DOES (18)⌄
- Water (Aqua)
- Solvent and formula base
- Glycerin
- Humectant moisture binder
- Butylene Glycol
- Humectant and solvent
- Polyglutamic Acid
- Film-forming humectant
- 1,2-Hexanediol
- Solvent and preservative booster
- Ectoin
- Osmoprotective soothing agent
- Hibiscus Sabdariffa Fruit Extract
- Botanical antioxidant extract
- Erythritol
- Humectant and skin conditioner
- Phenoxyethanol
- Broad-spectrum preservative
- Propanediol
- Humectant and solvent
- Xanthan Gum
- Viscosity-control thickener
- Caprylyl Glycol
- Humectant and preservative booster
- Carbomer
- Gel-forming thickener
- Ethylhexylglycerin
- Preservative efficacy booster
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer
- Polymer thickener and stabilizer
- Tocopherol
- Antioxidant and skin conditioner
- Citric Acid
- Formula pH adjuster
- Sodium Hydroxide
- Formula pH adjuster
EXTERNAL CITATIONS
Polyglutamic Acid: Humectant and film-forming hydration support; product page identifies 1% pure PGA plus a 3% PGA complex.
Glycerin: Well-established topical humectant for increasing skin hydration.
Ectoin: Osmoprotective ingredient used to support hydration and environmental-stress tolerance.
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
A cheaper serum that scores as high or higher
A different formula for the same concern (hydration) that scores at least as high on both efficacy and safety.
Prequel Multi-Quench Polyglutamic Acid Serum: common questions
Is Prequel Multi-Quench Polyglutamic Acid Serum worth it?
Prequel Multi-Quench Polyglutamic Acid Serum scores 3.9 out of 5.0 for efficacy (Effective) and 4.7 out of 5.0 for safety (Very Gentle) on DemythSkin's independent ingredient analysis. A competent hydration serum—not a transformative treatment.
What are the key active ingredients in Prequel Multi-Quench Polyglutamic Acid Serum?
Prequel Multi-Quench Polyglutamic Acid Serum contains no gold-standard actives. Its formula is built on supporting and base ingredients rather than clinically transformative actives.
Does Prequel Multi-Quench Polyglutamic Acid Serum contain fragrance or known irritants?
DemythSkin's analysis found no flagged irritants in Prequel Multi-Quench Polyglutamic Acid Serum. It scores 4.7 out of 5.0 for safety.
How is Prequel Multi-Quench Polyglutamic Acid Serum scored?
DemythSkin grades every product on two independent scores: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are graded S through D against a database of over 3,000 compounds. Brand and price are not part of the score, and no brand pays for one.
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