INKO Seoul Ampule No. 04

Vitamin C & Licorice Root Tone-Up Brightening

A brightening ampule designed to support even skin tone, visible dark spots, UV-dullness, post-blemish marks, and a more luminous complexion. Vitamin C provides antioxidant brightening support, while Licorice Root helps refine the look of uneven tone through melanin-pathway and calming skin-care support.

Inko brightening protocolBrighteningEven toneDark spot supportMelanin-control careAntioxidant careCertified Functional ingredients
Vitamin C and Licorice Root tone-up brightening ingredient visual
— What is it?

A tone-up brightening ampule for dull, uneven, or pigmentation-prone skin.

Vitamin C is a classic antioxidant ingredient used to support a brighter-looking complexion and improve the appearance of dull, uneven, or UV-stressed skin. Licorice Root, especially components such as glabridin, is commonly connected with melanin-pathway support and calming care, making it a natural partner for tone-focused brightening formulas. Together, they create a refined brightening ampule for skin that looks dull, sun-stressed, uneven, tired, or marked by post-blemish discoloration. Vitamin C and Licorice Root support brighter-looking tone, pigmentation care, and a clearer glow for dull, uneven, or sun-stressed skin.

Antioxidant brightening support

Vitamin C helps skin look fresher and more luminous when the complexion appears tired, flat, or affected by environmental stress. Helps tired or flat-looking skin appear fresher and more luminous.

Melanin-pathway support

Licorice Root supports visible pigmentation care and tone refinement by complementing Vitamin C’s brightening and antioxidant role. Supports visible pigmentation care and tone refinement.

Tone-up complexion care

Best paired with the Inko brightening protocol to support a clearer, brighter, more polished glow. Supports a clearer, brighter, more polished glow.

— How this ingredient works

A tone‑up brightening pathway.

Vitamin C & Licorice Root support brighter-looking skin by working through antioxidant defense, pigment-pathway balance, post-blemish tone refinement, and smoother light reflection.

Why skin looks dull or uneven

Oxidation, pigment signals, and rough surface

Skin can look darker, tired, or patchy when UV stress, post-blemish marks, uneven melanin activity, and dull surface buildup affect how light reflects.

brightening pathway
Why this blend helps

Protect, refine, and brighten

Vitamin C helps defend against oxidative dullness, while Licorice Root supports a calmer-looking pigment pathway for a clearer, more even glow.

01

Antioxidant logic

Vitamin C helps buffer oxidative stress from daily environmental exposure, which can make skin look dull, tired, and less radiant.

02

Pigment-pathway logic

UV stress and irritation can activate tyrosinase, the enzyme involved in melanin production. Vitamin C helps interfere with this oxidation-driven pigment process, while Licorice Root supports tyrosinase-related brightening pathways for a more even-looking tone.

03

Post-blemish logic

Breakouts can leave inflammation-related redness and uneven pigment activity behind. Vitamin C helps buffer oxidative stress, while Licorice Root supports calming and pigment-balancing pathways for softer-looking post-blemish marks.

04

Glow-reflection logic

When oxidative dullness, uneven tone, and rough-looking texture are better balanced, skin reflects light more evenly and appears brighter.

Why brightening needs protection

Tone-up care is not only about fading spots. Skin also needs antioxidant support because environmental stress can keep dullness and uneven tone visible.

Why Licorice Root fits this formula

Licorice Root is a strong fit for brightening pages because it supports the look of calmer tone, post-blemish clarity, and a softer luminous finish.

In short: Vitamin C & Licorice Root is good for tone-up brightening because it supports antioxidant defense, pigment-pathway balance, post-blemish mark refinement, and smoother light reflection for a clearer-looking glow.

— What is it good for?

Recommended for uneven, dull, sun-stressed, or pigmentation-prone skin.

This ampule is ideal when the goal is brighter-looking tone, visible dark spot support, UV-dullness care, post-blemish mark refinement, and a fresh tone-up glow.

1
Uneven skin tone Supports a more balanced-looking complexion when tone appears patchy, inconsistent, or less refined.
2
Hyperpigmentation care Vitamin C supports antioxidant brightening, while Licorice Root helps support melanin-pathway care for visible pigmentation concerns and post-blemish marks.
3
Dark spot support Useful for skin that needs targeted support for visible spots, uneven brown tone, and a cleaner-looking finish.
4
UV-dullness care Antioxidant-focused care for skin that looks tired, dull, or uneven after sun exposure, with Licorice Root adding a calmer tone-refining effect.
5
Brightening glow Supports a fresh, radiant tone-up look with a clearer, smoother, more luminous complexion.

Vitamin C & Licorice Root Ingredient Research

Tone, photoaging, hyperpigmentation, and antioxidant brightening support
Correia et al., 2023

Topical Vitamin C for melasma and photoaging

This review reports that topical Vitamin C may support uneven tone, photoaging care, and depigmenting-focused cosmetic care. This makes it relevant for dullness, UV-stressed skin, and visible tone refinement.

View study
Yokota et al., 1998

Glabridin from Licorice Root and melanogenesis support

This study investigated glabridin from licorice extract and described inhibition of tyrosinase activity and melanogenesis-related activity. This supports Licorice Root’s role in melanin-pathway and brightening-focused care.

View study
Research Summary
Vitamin C is well studied for antioxidant care, photoaging support, uneven tone, and brighter-looking skin. Licorice Root adds a complementary tone-refining and calming brightening story through melanin-pathway support. Together, they create a strong brightening ampule concept for UV-dullness, visible dark spots, post-blemish marks, and a more luminous complexion.
Microneedling — Delivery method

Microneedling(MTS)

A clearer way to help active ampoules reach the skin.

Microneedling creates controlled micro-channels on the skin surface. This helps selected ampoules absorb more effectively while encouraging the skin’s natural renewal response — useful when the goal is refined texture, pores, glow, and early-aging support.

01

Creates micro-channels

Creates tiny pathways on the skin’s surface, helping prepare the skin for more focused ampoule absorption.

02

Guides ampoule delivery

Allows the selected ampoule to reach the skin more effectively, targeting areas that need extra support.

03

Supports visible renewal

Encourages the skin’s natural renewal response, helping texture look smoother, fuller, and more refined over time.

Good to know: Temporary redness, warmth, sensitivity, or light flaking can occur after treatment. The depth, ampoule choice, and aftercare are adjusted according to the client’s skin condition and sensitivity.

Choose the right delivery method for your skin

Vitamin C can be applied through two INKO delivery methods: Microcurrent for gentle, non-invasive infusion, or microneedling for more targeted ingredient delivery and visible skin-renewal support. Explore the treatment options or contact us, and we will guide you to the best method for your skin.

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