Licorice Root and Tranexamic Acid Brightening Serum
Licorice Root and Tranexamic Acid Brightening Serum
Product Description
Product overview
A lightweight, vegan brightening serum powered by the synergistic combination of Tranexamic Acid, Licorice Root Extract, 5% Niacinamide, and Arbutin. Designed to fade dark spots, even out skin tone, and deliver all-day hydration for a radiant, dewy complexion.
Multi-Pathway Brightening
Combines four brightening agents (Tranexamic Acid, Licorice Root, Arbutin, Niacinamide) that target hyperpigmentation through different mechanisms for enhanced results.
Texture & feel
SENSORYMulti-Pathway Brightening
Combines four brightening agents (Tranexamic Acid, Licorice Root, Arbutin, Niacinamide) that target hyperpigmentation through different mechanisms for enhanced results.
Deep Hydration
Glycerin, Sodium Hyaluronate, and Panthenol attract and lock in moisture, keeping skin plump and hydrated throughout the day.
Skin Barrier Support
5% Niacinamide strengthens the skin barrier by boosting ceramide production, while Panthenol and Allantoin soothe and protect.
Clean Vegan Formula
Free from fragrances, oils, parabens, sulfates, and silicones. Only 18 thoughtfully selected ingredients with eco-friendly packaging.
Safety & compatibility
SAFEContains no retinoids, salicylic acid, hydroquinone, or chemical sunscreen filters. All ingredients are considered safe during pregnancy and breastfeeding.
Free from fermented ingredients, fatty acids, esters, polysorbates, and oils that feed Malassezia yeast. Safe for fungal acne-prone skin.
Oil-free, lightweight formula with no pore-clogging ingredients. Extremely unlikely to cause breakouts or clogged pores.
Fragrance-free with soothing Allantoin, Panthenol, and Licorice Root. Low irritation potential confirmed by ingredient analysis.
Brightening ingredients can increase sun sensitivity. Always apply SPF 30+ during the day when using this serum for best results.
Can be safely layered with retinol, vitamin C, AHAs, and BHAs. If using strong exfoliants, introduce gradually and monitor skin response.
Ingredient breakdown
INGREDIENTSTranexamic Acid ~2-3%Proven
A synthetic derivative of the amino acid lysine, Tranexamic Acid is a powerhouse brightening ingredient that works by blocking the transfer of melanin from pigment-producing cells to the skin's surface.
- Clinical Study: Topical application shown to significantly improve melasma in clinical trials (Journal of Dermatological Treatment).
- Mechanism: Inhibits plasminogen activator, reducing UV-induced melanin production and preventing dark spot formation.
- Barrier Benefit: Research shows Tranexamic Acid accelerates skin barrier recovery and upregulates occludin in damaged skin.
Licorice Root Extract (Glycyrrhiza Glabra)Proven
Present in two forms: Dipotassium Glycyrrhizate (anti-inflammatory salt) and Glycyrrhiza Glabra Root Extract. The active compound glabridin is one of the safest skin-lightening agents with minimal side effects.
- Study: Topical 0.5% glabridin inhibited UVB-induced pigmentation in research models.
- Comparison: Some studies suggest licorice root may be as effective as hydroquinone for brightening, with far fewer adverse effects.
- Multi-Action: Provides anti-inflammatory, antioxidant, antibacterial, and sebum-regulating properties beyond brightening.
Niacinamide (Vitamin B3) 5%Proven
A well-studied, multi-functional active that brightens skin, fades dark spots, minimizes pores, regulates sebum, and strengthens the skin barrier through increased ceramide synthesis.
- Concentration: 5% is the optimal concentration for both brightening and oil regulation benefits according to peer-reviewed literature.
- Brightening: Proven to inhibit melanosome transfer from melanocytes to keratinocytes, reducing visible pigmentation.
- Barrier Support: Increases ceramide synthesis, resulting in a stronger, healthier skin barrier and improved hydration.
Alpha-ArbutinPromising
Derived from the bearberry plant, Arbutin inhibits tyrosinase activity — the enzyme responsible for melanin production — helping to fade existing dark spots and prevent new ones.
- Mechanism: Unlike other brightening agents that inhibit tyrosinase synthesis, Arbutin specifically hinders the melanin-forming activity of the enzyme.
- Synergy: Works best when combined with direct tyrosinase inhibitors like Licorice Root and Vitamin C for enhanced brightening.
Sodium Hyaluronate ~0.05-0.15%Proven
The sodium salt form of Hyaluronic Acid, which can hold up to 1,000 times its weight in water. More stable and easier to formulate than pure HA, providing deep hydration to the skin.
- Hydration: Acts as a powerful humectant, drawing moisture from the environment into the upper layers of the skin.
- Penetration: Sodium Hyaluronate has a smaller molecular size than HA, allowing better absorption into the skin.
Panthenol (Pro-Vitamin B5) ~1.1-1.6%Proven
A powerful skin-conditioning agent that penetrates deep into skin layers. Acts as both a humectant and emollient, providing hydration while soothing inflammation and supporting wound healing.
- Barrier Repair: At this concentration, Panthenol effectively improves skin barrier function and reduces transepidermal water loss.
- Anti-Inflammatory: Calms redness and irritation, making the formula well-tolerated even by sensitive skin types.
18 ingredients
Water, Glycerin, Butylene Glycol, Niacinamide, 1,2-Hexanediol, Methyl Gluceth-20, Tranexamic Acid, Panthenol, Carbomer, Tromethamine, Allantoin, Dipotassium Glycyrrhizate, Ethylhexylglycerin, Disodium EDTA, Arbutin, Sodium Hyaluronate, Glyceryl Acrylate/Acrylic Acid Copolymer, Glycyrrhiza Glabra (Licorice) Root Extract
Where it fits in your routine
ROUTINEUse morning and evening after cleansing and toning. Apply before heavier serums and moisturizer. Always follow with SPF 30+ in the morning.
How to use
HOW TO USECleanse & Tone
Start with a clean face. Apply your toner using a cotton pad, wiping gently from the center of your face outward.
Apply the Serum
Dispense 3-4 drops onto your fingertips. Apply evenly over your face and neck, spreading from the center outward.
Pat & Absorb
Gently press the serum into your skin with your fingertips using a patting motion. This helps absorption and boosts circulation.
Follow Up
Layer your moisturizer on top to seal in the actives. In the morning, always finish with a broad-spectrum SPF 30+ sunscreen.
Who is it for?
WHOPerfect for you if:
- You have dark spots, sun damage, or post-acne marks you want to fade
- You struggle with uneven skin tone or dull complexion
- You want a gentle brightening serum safe for sensitive skin
- You need a pregnancy-safe or fungal acne-safe brightening product
- You prefer clean, vegan, fragrance-free skincare
- You want a lightweight serum that layers well under makeup
Consider alternatives if:
- You need aggressive treatment for deep melasma (consider prescription options)
- You want immediate, overnight visible results
- You prefer a thicker, cream-based serum texture
- You need a larger size (this is 35ml for travel-friendly portability)
- You want higher concentration actives like 10%+ Tranexamic Acid
Skin type compatibility
SKIN TYPESOil-free, lightweight formula absorbs instantly. 5% Niacinamide helps regulate sebum production and minimize pores.
Glycerin, Hyaluronic Acid, and Panthenol provide hydration, but dry skin types should layer a richer moisturizer on top to seal in moisture.
Balances perfectly across oily and dry zones. Hydrates without adding grease, while Niacinamide controls shine in the T-zone.
Fragrance-free with soothing Allantoin, Panthenol, and Licorice Root. Low irritation potential confirmed. Patch test recommended for very reactive skin.
Non-comedogenic (0/5), fungal acne safe, oil-free. Niacinamide helps reduce breakouts and Tranexamic Acid fades post-acne marks.
Results timeline
MONTH 2-3Immediate Hydration & Glow
Skin feels more hydrated and plump. A subtle healthy glow becomes noticeable as Glycerin and Hyaluronic Acid boost moisture levels in the upper skin layers.
70% noticed improved hydrationSkin Tone Begins to Even
Redness starts to diminish and overall skin tone appears more uniform. Niacinamide begins to visibly reduce pore appearance and regulate oil.
55% noticed brighter complexionVisible Dark Spot Fading
Hyperpigmentation and post-acne marks begin to lighten noticeably. Tranexamic Acid and Arbutin actively reduce melanin transfer to skin's surface.
60% noticed fading dark spotsSignificant Brightening Results
Full brightening benefits realized with consistent use. Sun damage and melasma visibly improved. Skin appears luminous, clear, and even-toned.
75% reported significant improvementRatings by platform
310+ REVIEWSPros & cons
BALANCEDPraised
- Multi-pathway brightening with 4 active brightening ingredients working synergistically
- Completely clean formula: vegan, fragrance-free, paraben-free, oil-free
- Safe for pregnancy, breastfeeding, fungal acne, and sensitive skin
- Lightweight texture absorbs quickly without stickiness or residue
- 5% Niacinamide at a clinically effective concentration
- Elegant glass dropper bottle with eco-friendly packaging
- Noticeable hydration boost from the first use
Criticized
- Small bottle size (35ml) means it runs out faster than competitors
- Exact concentrations of Tranexamic Acid and Arbutin not disclosed
- Results require patience — typically 4-8 weeks for visible brightening
- Mild formula may not be potent enough for severe or deep melasma
- Higher price per ml compared to budget alternatives like Cos De BAHA
- Limited availability — not widely stocked at major retailers
Budget-friendly alternatives (dupes)
DUPESHigher Tranexamic Acid concentration (5% vs undisclosed) and same 5% Niacinamide. Aloe-based formula instead of Glycerin-based. Lacks Arbutin and Licorice Root but has green tea extract. Larger 30ml size at a fraction of the price.
Clinical-grade 5% Tranexamic Acid formula with Kojic Acid, Niacinamide, and Licorice Root. Clinically proven to brighten in 8 weeks. Larger 30ml bottle. Slightly more complex formula with additional brightening pathways.
Contains Niacinamide, Arbutin, Licorice Root, and Ethyl Ascorbic Acid (Vitamin C derivative) but lacks Tranexamic Acid. Toner format instead of serum. Much larger 120ml size for better value per ml.
Comparison with competitors
SIDE-BY-SIDEPaula's Choice Discoloration Repair Serum
Storage & shelf life
12 MONTHS12 months after opening
Store at 15-25°C in a dark place. Avoid direct sunlight as it may cause a color change in the product.
Glass dropper bottle with eco-friendly packaging. Elegant square design with green and kraft paper color theme.
Yes — 35ml is well under the 100ml TSA/airline carry-on limit. Compact glass bottle fits easily in travel bags.
Frequently asked questions
FAQYes. This serum contains no retinoids, salicylic acid, hydroquinone, benzoyl peroxide, or chemical sunscreen filters — the ingredients most commonly flagged during pregnancy. All 18 ingredients in this formula are considered safe for use during pregnancy and breastfeeding. However, always consult your healthcare provider before adding new products to your routine during pregnancy.
Yes. This serum is fungal acne safe. The formula is free from fermented ingredients, fatty acids, esters, polysorbates, and oils that can feed the Malassezia yeast responsible for fungal acne. The oil-free, lightweight formula makes it one of the best brightening serum options for those dealing with fungal acne.
Yes, this serum is compatible with most actives. Tranexamic Acid and Niacinamide are gentle and stable ingredients that pair well with retinol, vitamin C, AHAs, and BHAs. For best results: use vitamin C in the morning and this serum in the evening, or alternate nights with retinol. If using strong exfoliants (AHA/BHA), introduce them gradually to avoid over-exfoliation and monitor your skin's response.
This serum is suitable for all skin types. It's especially excellent for oily, combination, acne-prone, and sensitive skin thanks to its oil-free, fragrance-free, non-comedogenic formula. Dry skin types can also benefit but should follow with a rich moisturizer. The 5% Niacinamide helps regulate oil for oily skin while the Hyaluronic Acid and Panthenol provide hydration for drier types.
You may notice improved hydration and a subtle glow within the first 1-2 weeks. Visible improvements in skin tone evenness typically appear around weeks 3-4. For significant fading of dark spots and hyperpigmentation, expect 4-8 weeks of consistent use. Full brightening results are usually achieved after 2-3 months. Consistency and daily sunscreen use are essential for best results.
Apply this serum as step 3 in your routine: after cleansing and toning, but before moisturizer and sunscreen. The thin, watery consistency is designed to be layered under thicker products. Use morning and evening for best results. In the morning, always finish with SPF 30+ sunscreen as brightening ingredients can increase photosensitivity.
No. This serum has a comedogenic rating of 0 out of 5. It contains no oils, heavy emollients, or known pore-clogging ingredients. The oil-free, lightweight formula is specifically designed to not clog pores. In fact, the 5% Niacinamide actively helps minimize pore appearance and regulate sebum production, making it beneficial for those prone to clogged pores and breakouts.
The serum has a Period After Opening (PAO) of 12 months and a total shelf life of 3 years from the manufacturing date. Store it at 15-25°C away from direct sunlight to preserve the formula's effectiveness. The glass dropper bottle helps protect the ingredients from light degradation. At recommended usage (3-4 drops twice daily), a 35ml bottle typically lasts 6-8 weeks.
Verdict: The Viegano Licorice Root + Tranexamic Acid Brightening Serum is a thoughtfully formulated K-beauty serum that delivers a gentle yet effective multi-pathway approach to brightening. Its standout strengths are its exceptionally clean formula (vegan, fragrance-free, oil-free) and impressive safety profile — being safe for pregnancy, fungal acne, and sensitive skin simultaneously is rare in the brightening category. The synergistic blend of Tranexamic Acid, Licorice Root, 5% Niacinamide, and Arbutin targets hyperpigmentation through multiple mechanisms. While the 35ml size and undisclosed active concentrations (beyond Niacinamide) are drawbacks compared to budget-conscious alternatives like Cos De BAHA, this serum earns its place for those who prioritize clean ingredients, gentle formulation, and a reliable K-beauty brightening solution they can trust.
Product Overview
Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.
Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.
Quick Product Notes
Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging «promises» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.
We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.
Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.
Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you
Notable Effects & Ingredients
Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.
We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.
A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.
One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!
Ingredients Related to Skin Types
Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.
EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.
Ingredient Safety Breakdown
Product ingredient list
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
| 1 |
Water
Solvent, Skin Conditioning
|
|
|
| 2 |
Glycerin
Solvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant, Skin Conditioning
|
Promotes Wound Healing
Hydrating
|
|
| 1 |
Butylene Glycol
Solvent, Skin Conditioning, Masking, Fragrance, Humectant, Viscosity Controlling, Viscositydecreasing Agent
|
Hydrating
|
|
| 1 |
Niacinamide
Skin Conditioning, Hair Conditioning, Smoothing
|
Promotes Wound Healing
Redness
Irritation
Dark Spots
Pores
|
|
| 1 |
1,2-Hexanediol
Solvent, Skin Conditioning
|
Hydrating
|






