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K-Secret

K-Secret 8809695240508 Serum

  • Serum
  • 1 fl oz
  • Serum
  • Unscented
4.5/ 5 on Amazon4,467Amazon ratings1,988+bought last month4.5ProductDome score
  • More reviewed than 94%
High confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou want an unscented vitamin C serum formulated for sensitive, dry or combination skin

An unscented vitamin C serum sized for daily use, aimed at improving elasticity and radiance across combination, dry and sensitive skin types.

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ProductDome scorecard

How it ranks among the 293 serums we track

4.5/ 5ProductDome scoreHigh confidence
Owner satisfaction · 56% of scorecategory median 4.4★4.5

4.5★ across 4,467 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 398 ratings4.6

4,467 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score4.5

1,988+ bought on Amazon last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 293 serums we track - how the scorecard works · full serums data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

K-Secret's 30 ml vitamin C serum is formulated for all skin types, including combination, dry and sensitive skin, and is aimed at improving elasticity and adding radiance without added scent.

K-Secret lists vitamin C as the key ingredient alongside claims of improved elasticity and radiance, in a 30 ml unscented format. No seller description or ingredient concentration is provided, so the formula details beyond the headline actives are limited.

  • Item form: serum
  • Key ingredient: vitamin C
  • Size: 30 milliliters
  • Unscented, for all skin types

Who it's for

Suits people with combination, dry or sensitive skin looking for an unscented brightening step. Less suited to shoppers who want a stated percentage of active vitamin C before buying.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Unscented formula suits sensitive and combination skin
  • Targets skin elasticity and radiance
  • Formulated for four skin types in one serum
What to check first
  • No listed vitamin C concentration
  • No seller description to confirm added actives
  • Single 30 ml size only

Performance notes

Vitamin C serums work as antioxidants that build results with repeated daily use rather than a single application. This listing does not specify a concentration, so how quickly elasticity or radiance changes will vary by user.

Specifications

BrandK-Secret
Model8809695240508
Dimensions & fit
Size1 fl oz
Other details
Skin TypeAll, Combination, Dry, Sensitive
Item FormSerum
ScentUnscented
Key IngredientsVitamin c
BenefitsImprove Skin Elasticity, Radiant Skin
AddressesSensitive skin

How it compares

This product against the closest alternatives we track in serums.

ProductAmazon ratingRatingsProductDome score
K-Secret 8809695240508 SerumThis product4.5 / 54,4674.5 / 5
Glow Recipe 2404846 SerumGlow Recipe4.6 / 58,4004.6 / 5
mixsoon 8809732910159 Serummixsoon4.5 / 510,1274.5 / 5
Beauty of Joseon 8809738312728 SerumBeauty of Joseon4.5 / 59,4614.5 / 5
medicube 8809982768524 Serummedicube4.6 / 55,1034.5 / 5
Frequently asked

Questions about the K-Secret 8809695240508

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

What skin types is the K-Secret serum formulated for?

It's formulated for all skin types, including combination, dry and sensitive skin.

Does the K-Secret Vitamin C Serum have a scent?

No, it's listed as unscented.

What size does the K-Secret serum come in?

It comes in a 30 milliliter bottle.