La Prairie Platinum Rare Cellular Night Elixir — Efficacy 4.1/5.0, Safety 3.1/5.0 | DemythSkin
++++
[ DemythSkin Verdict ]
La Prairie Platinum Rare Cellular Night Elixir
La Prairie

La Prairie Platinum Rare Cellular Night Elixir

SerumHydration
Efficacy
Strong
4.1 / 5.0
Safety
Irritant
3.1 / 5.0
System Verdict
Luxury packaging, but the formula is mostly a fragranced hydrating serum with a few useful actives—not a true high-performance treatment. The efficacy score is held back by heavy early-position alcohol, a fragrance load, and the fact that the strongest treatment ingredients are mid- to low-list rather than dominant; the vitamin C derivatives and peptides add real but modest support, while the exfoliating acids and many of the “rare” ingredients are likely too low or too unfocused to drive a clinically strong result.
Active Ingredients Detected
S Tier: Gold StandardsHigh Clinical Proof | Skin-Transformative
Glycolic AcidSodium Ascorbyl Phosphate
A Tier: Good BasicsProven Results
GlycerinSqualaneLactobacillus FermentSodium HyaluronateTocopherolMagnesium Carboxymethyl Beta-GlucanTocopheryl AcetateBisabololUreaLactobacillus/Punica Granatum Fruit Ferment ExtractSerineValine
B Tier: Supporting IngredientsPromising Ingredients
Synthetic FluorphlogopiteGlycoproteinsPanax Ginseng Root ExtractPalmitoyl Tripeptide-1Palmitoyl Tetrapeptide-7Nicotiana Sylvestris Leaf Cell CultureRNASoy Amino AcidsPolyacrylamideBiosaccharide Gum-1C13-14 IsoparaffinTin OxideAlcoholAcetyl Tetrapeptide-17FructoseGlutamic AcidAspartic AcidDextrinDextrin PalmitateZinc SulfateLimoneinCI 60730 (Violet 2)
C Tier: Marketing IdolsHype | Limited or Weak Data
Ascorbyl TetraisopalmitateEquisetum Arvense ExtractSaccharomyces Cerevisiae ExtractPlatinumCalendula Officinalis Flower ExtractYeast ExtractCharcoal Powder
D Tier: Potential IrritantsBe Cautious
SD Alcohol 40-B (Alcohol Denat.)Fragrance (Parfum)LinaloolCitronellolGeraniolHexyl Cinnamal
What Each Ingredient Does
Water (Aqua)
solvent base
Glycerin
humectant
Butylene Glycol
humectant solvent
SD Alcohol 40-B (Alcohol Denat.)
solvent
Caprylic/Capric Triglyceride
emollient
Ethylhexyl Palmitate
emollient
Ascorbyl Tetraisopalmitate
vitamin C derivative
Synthetic Fluorphlogopite
effect pigment
Squalane
emollient
Dimethicone
skin protectant
Glycoproteins
marketing extract
Panax Ginseng Root Extract
botanical extract
Equisetum Arvense Extract
botanical extract
Saccharomyces Cerevisiae Extract
ferment extract
Lactobacillus Ferment
ferment ingredient
Platinum
marketing mineral
Palmitoyl Tripeptide-1
signal peptide
Palmitoyl Tetrapeptide-7
signal peptide
Calendula Officinalis Flower Extract
soothing extract
Sodium Hydroxide
pH adjuster
Nicotiana Sylvestris Leaf Cell Culture
plant cell culture
Disodium EDTA
chelator
Polyglyceryl-6 Polyricinoleate
emulsifier
Yeast Extract
ferment extract
Full Ingredient List (INCI)

Water (Aqua), Glycerin, Butylene Glycol, SD Alcohol 40-B (Alcohol Denat.), Caprylic/Capric Triglyceride, Ethylhexyl Palmitate, Ascorbyl Tetraisopalmitate, Synthetic Fluorphlogopite, Squalane, Dimethicone, Glycoproteins, Panax Ginseng Root Extract, Equisetum Arvense Extract, Saccharomyces Cerevisiae Extract, Lactobacillus Ferment, Platinum, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Calendula Officinalis Flower Extract, Sodium Hydroxide, Nicotiana Sylvestris Leaf Cell Culture, Disodium EDTA, Polyglyceryl-6 Polyricinoleate, Yeast Extract, Sodium Hyaluronate, Tocopherol, RNA, Magnesium Carboxymethyl Beta-Glucan, Soy Amino Acids, Polyacrylamide, Polyglyceryl-10 Laurate, Tocopheryl Acetate, Polyacrylate Crosspolymer-6, Silica, Coco-Glucoside, Biosaccharide Gum-1, Bisabolol, C13-14 Isoparaffin, Carbomer, Sodium Lactate, Laureth-7, Tin Oxide, Charcoal Powder, Glycolic Acid, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Alcohol, Acetyl Tetrapeptide-17, Lactic Acid, Xanthan Gum, Citric Acid, Urea, Fructose, Lactobacillus/Punica Granatum Fruit Ferment Extract, Serine, Glutamic Acid, Aspartic Acid, Valine, Dextrin, Dextrin Palmitate, Zinc Sulfate, Sodium Ascorbyl Phosphate, Sodium Benzoate, Potassium Sorbate, Phenoxyethanol, Ethylhexylglycerin, Fragrance (Parfum), Benzyl Alcohol, Linalool, Citronellol, Geraniol, Hexyl Cinnamal, Limonein, CI 60730 (Violet 2)

Frequently Asked

Is La Prairie Platinum Rare Cellular Night Elixir worth it?

La Prairie Platinum Rare Cellular Night Elixir scores 4.1 out of 5.0 for efficacy (Strong) and 3.1 out of 5.0 for safety (Irritant) on DemythSkin's independent ingredient analysis. Luxury packaging, but the formula is mostly a fragranced hydrating serum with a few useful actives—not a true high-performance treatment. The efficacy score is held back by heavy early-position alcohol, a fragrance load,

What are the key active ingredients in La Prairie Platinum Rare Cellular Night Elixir?

La Prairie Platinum Rare Cellular Night Elixir contains these gold-standard actives with strong clinical evidence: Glycolic Acid, Sodium Ascorbyl Phosphate.

Does La Prairie Platinum Rare Cellular Night Elixir contain fragrance or known irritants?

DemythSkin flags these ingredients in La Prairie Platinum Rare Cellular Night Elixir as potential irritants: SD Alcohol 40-B (Alcohol Denat.), Fragrance (Parfum), Linalool, Citronellol, Geraniol, Hexyl Cinnamal. This product does contain fragrance.

How is La Prairie Platinum Rare Cellular Night Elixir scored?

DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.

Analyze on DemythSkin →

Analysis last updated: 2026-09-30. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.