An independent ingredient and price comparison. We don't sell products. Buy buttons are affiliate links.Independent comparison. Buy buttons are affiliate links.
Prices in euros. Each store sets its own delivery terms.
Lyko
€98.67 / 100 ml · in stock
€74.00
Buy · LykoAffiliate linkLyko and Cocopanda are Finnish online stores with prices in euros. YesStyle's prices are in British pounds, shown with their approximate value in euros. Cocopanda delivers only within mainland Finland; Lyko's delivery terms also list Sweden, Norway, Denmark, Poland, the Netherlands, Austria, and Germany; YesStyle lists delivery to the US, the UK, Finland, and other countries.
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Kiehl's Age Defender Power Serum is a serum (75 ml). The list contains no essential oils or sulfates. Flagged ingredient groups in the list: fragrance (LIMONENE), drying alcohol (ALCOHOL DENAT), silicone (DIMETHICONE), and watchlist ingredient (GLYCINE SOJA OIL / SOYBEAN OIL). The ingredient list has 26 ingredients; serums typically have 28. The cheapest price right now is €74.00 at Lyko, which works out to €98.67 / 100 ml. The typical price for serums is €94.15 / 100 ml. One store carries it, and the price was checked 11/5/2026.
Checked against the ingredient list.
Fragrance: LIMONENE, LINALOOL Drying alcohol: ALCOHOL DENAT Silicone: DIMETHICONE Watchlist ingredient: GLYCINE SOJA OIL / SOYBEAN OIL
The product contains fragrance or declared fragrance allergens.
The product contains a volatile alcohol high in the ingredient list.
The product contains silicones.
The product contains an ingredient commonly considered pore-clogging.
Confidence: medium · v2026.10.1
This assessment is read from the ingredient list and is not medical advice. It makes no promise about acne. Individual skin reactions vary.
26 ingredients0 key5 flagged
Picked by product type and shared key ingredients. We do not compare whole ingredient lists yet.
€76.00€76.00 / 100 mlat 1 store
€35.00at 1 store
No. The list contains ingredients from the fragrance group: LIMONENE, LINALOOL.
Yes. The list contains drying alcohol: ALCOHOL DENAT.
At Lyko: €74.00 (checked 11/5/2026).
GLYCERIN. It is the first ingredient in the list, not counting water. Its role in the formula: humectant.
Several things to note
The classification is read from the ingredient list: Fragrance: LIMONENE, LINALOOL. Drying alcohol: ALCOHOL DENAT. Silicone: DIMETHICONE. Watchlist ingredient: GLYCINE SOJA OIL / SOYBEAN OIL.
The ingredient list has 26 ingredients; serums typically have 28.
Buy buttons are affiliate links: SkinIndex may earn a commission if you buy through them. The price is the same for you, and stores are listed by price. Affiliate disclosure
The order is the manufacturer's own and follows concentration down to the one percent mark. Underlined names are flagged by our criteria. Names with a dotted underline open a short note on what the ingredient does in the formula. Names in bold are key ingredients. The 1% line is an estimate: the EU allows at most 1% phenoxyethanol, so the ingredients listed after it are present at about that level or less.
€35.00
€57.00€190.00 / 100 mlat 1 store
