INNISFREE Serums

Innisfree serums at skinsli.com span 14+ treatment-level products covering hydration, brightening, firming, and anti-ageing concerns. The Green Tea Seed Hyaluronic Serum (80ml) is the collection's most versatile daily serum. The Vitamin C Green Tea Enzyme Brightening Serum (30ml) and True Vitamin C 23 Ampoule (20ml) target uneven tone and pigmentation at different concentrations. The Retinol Cica Repair Ampoule (30ml) delivers retinol buffered with centella asiatica. The Perfect 9 Intensive Serum (50ml) uses nine botanicals for a comprehensive barrier and firming treatment. All serums use Jeju-sourced actives.

  • 14+ serum SKUs
  • Vitamin C brightening
  • Retinol anti-ageing
  • Green tea + hyaluronic

By Skinsli editorial Updated

Buying guide

Innisfree Serum Buying Guide: Vitamin C, Retinol, HA, and Botanical Serums

Innisfree serums at skinsli.com cover four major skin concerns - hydration, brightening, anti-ageing, and comprehensive barrier support - through 14+ SKUs. Each serum is built on Jeju botanical actives and positioned for a specific concern or skin type. This guide covers the key serums in the lineup, explains how each active works, and shows how to choose and layer them in a routine.

Four Serum Categories in the Innisfree Lineup

The 14+ Innisfree serums group into four functional categories:

  • Hydration serums - Green Tea Seed Hyaluronic Serum (80ml). Suits all skin types for daily moisture delivery.
  • Brightening / vitamin C serums - Vitamin C Green Tea Enzyme Brightening Serum (30ml) and True Vitamin C 23 Ampoule (20ml). Targets pigmentation, dullness, and uneven tone.
  • Retinol / anti-ageing - Retinol Cica Repair Ampoule (30ml). Targets fine lines, cell turnover, and barrier repair.
  • Comprehensive botanical treatment - Perfect 9 Intensive Serum (50ml). Multi-botanical firming and renewal serum for dry or mature skin.

Toners included in the broader serum collection (Olive Vitamin E Real Skin, Jeju Orchid Skin, Blueberry Rebalancing Skin) function as first-treatment layers rather than standalone treatment serums.

Green Tea Seed Hyaluronic Serum (80 ml): The Daily Foundation Serum

The Green Tea Seed Hyaluronic Serum is the most versatile and widely used serum in the Innisfree lineup. At 80ml it is an unusually generous serum format - most Korean serums are 30-50ml. It combines multi-weight hyaluronic acid with green tea seed oil (rich in omega-6 linoleic acid and catechin antioxidants) to deliver hydration and barrier protection simultaneously.

Application: press a small amount onto toned skin before moisturiser, or layer it with the matching Green Tea Seed Hyaluronic Cream for a more intensive hydration result. It suits all skin types and all seasons. For oily skin, the serum alone without the cream is often sufficient as a daily moisturising step. At its size and price point, this serum is one of the best-value daily hydration products in the Innisfree range.

Vitamin C Serums: Brightening Serum vs. True Vitamin C 23 Ampoule

Innisfree offers two vitamin C serums at different potency levels:

  • Vitamin C Green Tea Enzyme Brightening Serum (30ml) - a mid-strength brightening serum that pairs ascorbic acid with green tea enzymes for a multi-pathway approach to uneven tone. The enzyme component helps break down dull surface cells to amplify the vitamin C's brightening effect. Suitable for daily morning use for most skin types. Apply after toning and press into skin before moisturiser.
  • True Vitamin C 23 Ampoule (20ml) - 23% pure ascorbic acid. One of the most concentrated OTC vitamin C products on the market. Delivers a potent antioxidant and brightening dose but requires a gradual introduction for most skin types. Not suitable for vitamin C beginners without a slow-start protocol.

For first-time vitamin C users, start with the Brightening Serum. Move to the 23 Ampoule after building tolerance over 4-8 weeks. Always follow either product with SPF.

Retinol Cica Repair Ampoule (30 ml): Gentle Retinol with Cica Buffer

The Retinol Cica Repair Ampoule (30ml) pairs retinol with centella asiatica extract to deliver anti-ageing cell-turnover benefit while simultaneously calming the irritation that retinol can cause. The 30ml size provides a substantially longer treatment period than the smaller 15ml Retinol Cica Trace Ampoule, making it more practical for ongoing daily use once retinol tolerance is established.

Retinol increases cell turnover (shedding old cells faster and stimulating collagen production), which addresses fine lines, rough texture, and dullness. The cica component counteracts the transient redness and peeling associated with retinol introduction. Use in the evening after toning, before moisturiser. Start two to three times per week and build toward nightly use over 4-6 weeks. Always use SPF the following morning.

Perfect 9 Intensive Serum (50 ml): Nine-Botanical Firming Treatment

The Perfect 9 Intensive Serum uses a complex of nine Jeju-sourced botanical actives to deliver a comprehensive firming and renewal treatment in serum format. The nine-botanical formula addresses multiple aspects of skin ageing: hydration retention, collagen support, barrier repair, and antioxidant protection. At 50ml it provides about two to three months of daily use.

The Perfect 9 Serum is best suited to dry, normal, or mature skin that benefits from a rich, multi-botanical treatment serum. It works well as the single serum step in an evening routine for skin that does not need a targeted vitamin C or retinol treatment. It can also be used in the morning under a lighter moisturiser and SPF. Oily skin types may find the texture slightly heavy as an all-over daily serum.

Can I Layer Multiple Innisfree Serums?

Layering serums is common in Korean skincare, but some combinations require care:

  • Green Tea Seed HA Serum + Perfect 9 Serum - compatible; apply HA serum first for hydration, then Perfect 9 for botanical treatment.
  • Vitamin C Serum + Retinol Cica Ampoule - use vitamin C in the morning and retinol in the evening. Applying both at the same time can cause irritation and may reduce each product's efficacy.
  • Green Tea Seed HA Serum + Vitamin C Serum - compatible for morning use: HA serum first, then vitamin C, then SPF.

The general rule is to apply thinner-texture products before thicker ones, and to separate vitamin C (morning) and retinol (evening) into different routines.

Matching Innisfree Serums to Skin Type

A quick guide to matching serums from the 14+ range to skin type:

  • Oily skin - Green Tea Seed Hyaluronic Serum (alone, without the cream). The HA base is non-comedogenic and does not add oil.
  • Dry or dehydrated skin - Green Tea Seed Hyaluronic Serum + Perfect 9 Intensive Serum layered together, or either serum under the Green Tea Seed Hyaluronic Cream.
  • Dull or hyperpigmented skin - Vitamin C Green Tea Enzyme Brightening Serum (morning). Graduate to True Vitamin C 23 Ampoule once tolerance is established.
  • Mature or line-prone skin - Retinol Cica Repair Ampoule (evening) for long-term cell turnover; Perfect 9 Intensive Serum for daily botanical support.
  • Sensitive skin - Green Tea Seed Hyaluronic Serum for daily hydration; Retinol Cica Ampoule if retinol is desired (the cica buffer makes it more tolerable than standalone retinol).

Authenticity and Sourcing at skinsli.com

All Innisfree serums at skinsli.com are sourced from authorised Korean distributors and manufactured by AmorePacific in South Korea. Original Korean packaging with English stickers is standard. Batch codes confirm manufacture and expiry dates on receipt. Vitamin C serums and ampoules are particularly sensitive to heat and light; store away from direct sunlight and discard if the formula turns noticeably orange or brown. Products ship with at least 18 months before expiry.

FAQ

Frequently asked questions

  • The serum collection includes 14+ SKUs: Green Tea Seed Hyaluronic Serum 80ml, Vitamin C Green Tea Enzyme Brightening Serum 30ml, True Vitamin C 23 Ampoule 20ml, Retinol Cica Repair Ampoule 30ml, Perfect 9 Intensive Serum 50ml, and several toners that function as first-treatment layers (Olive Vitamin E Real Skin, Jeju Orchid Skin, Blueberry Rebalancing Skin in 150ml and 500ml).

  • Yes. The 80ml is unusually generous for a serum - most Korean serums are 30-50ml. With a standard amount used twice daily, it typically lasts two to three months, making it excellent value for a daily staple. The larger size also means you can be slightly more generous with each application, which helps achieve the optimal dose of hyaluronic acid for visible results.

  • Choose based on your vitamin C experience and skin tolerance. The Vitamin C Green Tea Enzyme Brightening Serum is the gentler option, well-suited for most skin types and vitamin C beginners. The True Vitamin C 23 Ampoule at 23% pure ascorbic acid is one of the most potent OTC vitamin C products available and should be introduced gradually - starting two to three times per week - to allow skin to build tolerance. If you have never used vitamin C before, start with the serum.

  • Both use retinol buffered with centella asiatica, but they differ in size and intended use stage. The Retinol Cica Trace Ampoule (15ml) is a smaller, starter-size format with a "trace" low concentration suited for first-time retinol users or sensitive skin. The Retinol Cica Repair Ampoule (30ml) is the full-size, regular ongoing treatment format. Once you have confirmed retinol suits your skin with the 15ml trace version, the 30ml repair ampoule provides a more practical daily-use supply.

  • The Perfect 9 Intensive Serum uses a proprietary nine-botanical complex of Jeju-sourced plants. The specific nine ingredients vary slightly by product generation, but the line is built around Innisfree's core Jeju actives - including green tea, orchid, canola, volcanic mineral water, and other Jeju-origin botanicals - formulated to address hydration, antioxidant protection, and skin renewal together. The "9" positioning reflects the brand's holistic approach to covering multiple skin concerns in a single formula.

  • Apply after cleansing and toning, before moisturiser and SPF. Press a few drops into clean, toned skin and allow 30 seconds to absorb. Follow with your moisturiser or the Green Tea Seed Hyaluronic Cream, then SPF. SPF is essential on top of any vitamin C product, as vitamin C increases photosensitivity - the antioxidant protection is most effective in combination with a physical or chemical sunscreen.

  • Begin with two to three applications per week in the evening. Apply a few drops after cleansing and toning, before moisturiser. Use this reduced frequency for two to three weeks. If your skin shows no persistent irritation (manageable redness that clears within hours is normal; peeling is normal in week two to four), increase to nightly use. Always apply SPF the following morning - retinol increases photosensitivity regardless of whether you use it in the morning or evening.

  • Yes. Apply the Green Tea Seed Hyaluronic Serum first for hydration, then the Vitamin C Green Tea Enzyme Brightening Serum over it for brightening. The hyaluronic acid base of the first serum does not interfere with vitamin C activity. Finish with moisturiser and SPF. This layering is a practical way to address both hydration and pigmentation in a single morning routine without multiple separate product categories.

  • The Green Tea Seed Hyaluronic Serum is the most universally well-tolerated serum in the lineup - hyaluronic acid and green tea are gentle actives with minimal irritation risk. For sensitive skin that wants brightening, the Vitamin C Green Tea Enzyme Serum is gentler than the 23% ampoule. For anti-ageing, the Retinol Cica Repair Ampoule's cica buffer makes it the most suitable retinol option for sensitive skin compared with standalone retinol products.

  • The Green Tea Seed Hyaluronic Serum is the lightest daily option and is non-comedogenic. The Vitamin C Green Tea Enzyme Serum is also well-suited for oily skin since vitamin C does not add oil or heaviness. The Perfect 9 Intensive Serum and Retinol Cica Repair Ampoule have slightly richer textures; oily skin users may prefer using them only in the evening or at a lighter application amount.

  • Yes. All serums are sourced from authorised Korean distributors and manufactured by AmorePacific in South Korea. They ship with original Korean packaging and English detail stickers. Batch codes confirm manufacture and expiry dates on receipt. Products arrive with at least 18 months before expiry. Vitamin C serums and ampoules should be stored away from heat and light to prevent oxidation.

  • Yes. The Green Tea Seed Hyaluronic Serum at 80ml is notably generous in size for its price. The True Vitamin C 23 Ampoule is competitive with European and US vitamin C ampoules at equivalent concentrations, which typically cost more for smaller volumes. The Perfect 9 Intensive Serum and Retinol Cica Repair Ampoule are also well-priced relative to their active ingredient load compared with similarly positioned Western serums.

  • All Innisfree serums ship from skinsli.com's US fulfillment centre, with standard delivery in three to seven business days. Expedited options are available at checkout. Serum bottles and ampoules are standard cosmetic formats with no special shipping handling required for domestic US delivery.