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K-Secret SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng vs Pyunkang Yul Black Tea Boosting Serum
Two products from the same category (Serums) side by side: the verdict, eight ingredient-list checks, key ingredients by position, and prices by store. Shared key ingredients: Ginseng, Niacinamide, and Peptides.
We don't name a winner. This page puts the lists and prices side by side, and the choice is yours.
Differences at a glance
The lowest price is £10.85 (about €13.01) for SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng and £16.93 (about €20.30) for Black Tea Boosting Serum.
Silicone-free: yes for SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng, no for Black Tea Boosting Serum.
No watchlist ingredients: yes for SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng, no for Black Tea Boosting Serum.
Retinoid is ingredient no. 26 in SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng and is not in the list for Black Tea Boosting Serum.
Centella asiatica is ingredient no. 52 in Black Tea Boosting Serum and is not in the list for SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng.
Madecassoside is ingredient no. 60 in Black Tea Boosting Serum and is not in the list for SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng.
Hyaluronic acid is ingredient no. 51 in Black Tea Boosting Serum and is not in the list for SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng.
Ceramides is ingredient no. 55 in Black Tea Boosting Serum and is not in the list for SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng.
Panthenol (B5) is ingredient no. 27 in Black Tea Boosting Serum and is not in the list for SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng.
Green tea is ingredient no. 13 in Black Tea Boosting Serum and is not in the list for SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng.
Fermented ingredients is ingredient no. 49 in Black Tea Boosting Serum and is not in the list for SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng.
Verdict:Non-comedogenic(SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng)Some things to note(Black Tea Boosting Serum)
Ginseng is ingredient no. 1 in SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng and no. 34 in Black Tea Boosting Serum.
Niacinamide is ingredient no. 6 in SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng and no. 4 in Black Tea Boosting Serum.
Peptides is ingredient no. 39 in SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng and no. 47 in Black Tea Boosting Serum.
The list for SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng has 41 ingredients; the list for Black Tea Boosting Serum has 66 ingredients.
Side by side
K-Secret SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng and Pyunkang Yul Black Tea Boosting Serum side by side
Pairs follow a published formula: same category, both ingredient lists read and at least one price each, one of the two among its category's 50 cheapest or the 50 with prices from the most stores, and neither a set, gift box or mini size. The two share at least two key ingredients, or one and a price per 100 ml in the same range (the dearer at most 2.5 times the other). The most alike pairs come first.
Yes
Yes
Silicone-free
Yes
NoIn the list: Dimethicone/Vinyl Dimethicone Crosspolymer
Sulfate-free
Yes
Yes
No watchlist ingredients
Yes
NoIn the list: Ethylhexyl Palmitate
Cruelty-free
No information
No information
Vegan
No information
No information
Key ingredients
Ginsengno. 1, not counting water
Niacinamideno. 6, not counting water
Retinoidno. 26, not counting water
Peptidesno. 39, not counting water
Niacinamideno. 4, not counting water
Green teano. 13, not counting water
Panthenol (B5)no. 27, not counting water
Ginsengno. 34, not counting water
Peptidesno. 47, not counting water
Fermented ingredientsno. 49, not counting water
Hyaluronic acidno. 51, not counting water
Centella asiaticano. 52, not counting water
Ceramidesno. 55, not counting water
Madecassosideno. 60, not counting water
Ingredients in the list
41 ingredients
66 ingredients
Prices by store
YesStyleCheapest£10.85 (about €13.01)€43.37 / 100 mlBuy · YesStyleAffiliate link
The lowest price is in bold. Positions do not count water. Prices checked 11/6/2026.
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SEOUL 1988 Serum: Retinal Liposome 2% + Black Ginseng vs Black Tea Boosting Serum
