TIRTIR NIACINAMIDE 20% SERUM 30ML

Values You Can Trust: Halal-Friendly* / Vegan-Friendly* / Fragrance-Free* / Dermatologist Tested* / 100% Authentic Guarantee

*Self-assessed by Adilsons based on available ingredient data (the origin of Cholesterol is not disclosed by the brand). / *Self-assessed by Adilsons based on available ingredient data (the origin of Cholesterol is not disclosed by the brand). / *Based on brand-declared INCI; trace fragrance components may persist from botanicals. / *Brand-stated; test details (n, duration, protocol) not publicly disclosed.

A highly concentrated serum designed for experienced skincare users to visibly improve uneven skin tone, reduce the appearance of pores, and control excess oil. Formulated for impact, this is a targeted treatment for resilient skin types dealing with stubborn concerns.

Dealing with stubborn dark marks, visible pores, or constant shine can be frustrating. This serum offers a high-strength approach for those who have found lower concentrations of niacinamide insufficient.

• What it is: A concentrated serum with 20% Niacinamide, 2% Alpha-Arbutin, Glutathione, and a touch of Retinol to tackle multiple skin concerns at once.
• Who it's for: Best suited for oily, combination, and resilient skin types accustomed to potent active ingredients.
• What it does: Helps to visibly fade post-inflammatory hyperpigmentation (PIH), regulate sebum production for less shine, and improve the appearance of enlarged pores and fine lines.
• Cautions: This is a very strong formula. Beginners or those with sensitive or dry skin should start with a lower percentage (5-10%) niacinamide serum to build tolerance first. Patch testing is essential.

If you already own a similar treatment serum, finish that bottle first. Mindful consumption means substituting, not needlessly stacking.

1. Cleanse: Wash your face with a gentle gel or foam cleanser.
2. Treat (PM): Apply 2-3 drops of the TIRTIR serum to dry skin. Start by using it every other night for the first two weeks.
3. Moisturise (PM): Follow with a light, hydrating moisturiser to seal it in.
4. Protect (AM): In the morning, cleansing, moisturizing, and applying a broad-spectrum sunscreen of SPF 30 or higher is non-negotiable, as this serum contains retinol.

Due to the retinol content and high active concentration, we recommend reserving this serum for your evening routine to minimise potential photosensitivity.

• Minimalist Morning: 1) Gentle Cleanser → 2) Hydrating Toner (Optional) → 3) Moisturiser → 4) Sunscreen SPF 30+.
• Advanced (If Tolerated): If your skin is very resilient and shows no irritation, you may use it in the AM after cleansing/toning and before moisturiser. However, diligent and frequent sunscreen reapplication is absolutely critical. For most users, PM-only is the safest approach.

• Minimalist Evening: 1) Cleanser → 2) TIRTIR Niacinamide 20% Serum → 3) Moisturiser.
• Expanded Evening: 1) Oil-based cleanser (to remove makeup/sunscreen) → 2) Water-based cleanser → 3) Hydrating toner or essence → 4) TIRTIR Niacinamide 20% Serum → 5) Moisturiser.

Rule of Thumb: Apply products from the thinnest texture to the thickest.

• Amount: Use 2-3 drops for the entire face. A thin layer is sufficient.
• Frequency: Start by using it only every other night for the first 2 weeks to allow your skin to acclimatise. If your skin feels comfortable with no signs of irritation, you can gradually increase to nightly use. For most users, PM-only use is recommended.
• Method: Apply to clean, dry skin. Gently pat the serum until it is fully absorbed. Wait about 60 seconds before applying your moisturiser.
• Layering Caution: Do not use in the same routine as other strong exfoliants (AHAs, BHAs), high-concentration Vitamin C (L-Ascorbic Acid), or other retinoid products until your skin has fully adapted. Alternate these products on different nights.

This planner helps you safely incorporate a strong active. "Soothing night" means using only gentle, hydrating, and barrier-supporting products (e.g., cleanser, hydrating toner, ceramide moisturiser).

• Weeks 1-2 (Introduction Phase):
  • Mon: TIRTIR Serum (PM)
  • Tue: Soothing night
  • Wed: TIRTIR Serum (PM)
  • Thu: Soothing night
  • Fri: TIRTIR Serum (PM)
  • Sat & Sun: Soothing nights
• Weeks 3-4 (Adaptation Phase):
  • If your skin feels good, increase to 4-5 nights per week (e.g., Mon, Tue, Thu, Sat). Continue to alternate with soothing nights.
• After 1 Month (Maintenance):
  • If tolerated well, you may proceed to nightly use. If you experience any irritation, reduce the frequency back to every other night.

Important: On nights you use this serum, avoid other exfoliants or retinoids. Dedicate separate nights for those actives if they are part of your routine.

Results are gradual and depend on consistent use, especially with daily sunscreen application. Patience is key.

• Immediate (First 1-2 uses): Skin may feel smoother. Some users may experience mild tingling or flushing, which should subside.
• 2-4 Weeks: A noticeable reduction in surface oiliness and shine throughout the day. Skin texture may feel more refined.
• 4-8 Weeks: The appearance of enlarged pores may be visibly reduced. Overall skin tone begins to look more even and radiant.
• 8-12+ Weeks: With consistent use and diligent sun protection, post-inflammatory hyperpigmentation (dark spots from acne) should appear visibly lighter and less prominent.

This product contains a low concentration of retinol. When introducing ingredients that speed up cell turnover, some users may experience a temporary period of breakouts, often called "purging." This typically occurs in areas where you usually break out and should resolve within a few weeks. Retinol also increases your skin's sensitivity to the sun.

• To manage purging: Introduce the serum slowly as recommended in the Weekly Planner. Ensure your skin is well-hydrated.
• For photosensitivity: Daily use of a broad-spectrum sunscreen with SPF 30 or higher is mandatory.

Myth: "You can't use Niacinamide with Vitamin C."

Reality: This myth is based on outdated research using unstable forms of the ingredients under high heat. Modern, well-formulated skincare products are stable and can be used together. For maximum benefit and to avoid any potential sensitivity, many users prefer to use Vitamin C in their AM routine (for antioxidant protection) and Niacinamide in their PM routine. This is a safe and effective way to incorporate both into your regimen.

• Works Well With: Hydrating ingredients like Hyaluronic Acid and Panthenol, barrier-supporting ingredients like Ceramides, and gentle antioxidants. You can safely layer this serum over a hydrating toner or under a ceramide-rich moisturiser.
• Use With Caution: Avoid layering this serum in the same routine with other potent actives until your skin is fully accustomed to it. This includes high-concentration Vitamin C (L-Ascorbic Acid), strong AHAs (like Glycolic Acid), BHAs (Salicylic Acid), and other retinoid products. It is safer to alternate these on different nights to prevent over-exfoliation and irritation.

• Oily & Combination Skin: An excellent match. The high concentration of niacinamide and the addition of Zinc PCA work effectively to regulate sebum and minimise the appearance of pores.
• Normal Skin: May find this beneficial for texture and tone, but should introduce it slowly due to its strength.
• Dry & Sensitive Skin: Proceed with extreme caution. The 20% niacinamide concentration may cause stinging, redness, or irritation. We strongly recommend starting with a 5-10% niacinamide product first. If you choose to use this, patch testing is mandatory, and applying it over a moisturiser ("buffering") can help reduce potential irritation.
• Fungal Acne (Malassezia) Prone: This formula contains ingredients like Macadamia Ternifolia Seed Oil, Polysorbate 60, and certain esters which can potentially trigger Malassezia breakouts in susceptible individuals. If you have this concern, monitor your skin closely or opt for an "FA-safe" serum.

• Post-Inflammatory Hyperpigmentation (PIH): The combination of 20% Niacinamide, 2% Alpha-Arbutin, and Glutathione creates a powerful blend to inhibit and fade the appearance of dark marks left by acne or inflammation.
• Excess Oil & Enlarged Pores: High-strength Niacinamide is clinically recognised for its ability to regulate sebum production. This, along with Zinc PCA, helps to reduce surface oiliness, which can in turn make enlarged pores appear smaller and more refined.
• Uneven Skin Texture & Early Fine Lines: The inclusion of a low concentration of Retinol helps to accelerate skin cell turnover, promoting a smoother, more even texture and softening the look of early fine lines over time.

• Official Korean Name: 티르티르 나이아신아마이드 20% 세럼 (Tireutireu Naiasinamaideu 20% Sereom)
• Product Volume: 30ml / 1.01 fl. oz.
• Country of Manufacture: South Korea
• Period After Opening (PAO): 12 months. Always check the open-jar symbol on the packaging for confirmation.

• Halal Status: Halal-Friendly*. This product contains Cholesterol, and the brand has not disclosed its origin (it can be animal-derived, plant-derived, or synthetic). Our review of the remaining ingredients did not find any other non-permissible components like animal-derived fats or denatured alcohol.
• Vegan Status: Vegan-Friendly*. Due to the undisclosed origin of Cholesterol, we cannot certify this product as vegan. No other animal-derived ingredients were detected in our review.
• Animal Testing Policy: The brand TIRTIR is reported to be cruelty-free, but it is not certified by a major independent body like Leaping Bunny or PETA.

*Self-assessed by Adilsons based on available ingredient data (no ethanol/denat.; no haram animal-derived ingredients detected, though cholesterol source is unconfirmed). / *Self-assessed by Adilsons based on available ingredient data (no animal-derived ingredients detected, though cholesterol source is unconfirmed).

• MFDS Functional Cosmetic: In South Korea, Niacinamide is a functional ingredient for "Brightening" (미백 기능성), and Adenosine/Retinol are functional ingredients for "Wrinkle-improvement" (주름 개선 기능성). While this product contains such ingredients, its specific registration status with the Ministry of Food and Drug Safety (MFDS) is not publicly disclosed by the brand.
• Brand Claims: TIRTIR states the product is "dermatologist tested" but does not provide public details on the testing protocol, sample size (n), or duration. Efficacy claims are based on the known functions of the ingredients.

*"Brightening" in the context of MFDS functional cosmetics refers to improving skin radiance and helping with uneven tone (like sun spots or PIH); it does not mean changing one's natural skin colour. / Brand-stated; test details (n, duration, protocol) not publicly disclosed. / Brand claim—no public dataset available for independent verification.

Key Actives Explained:

• Niacinamide (20%): A very high concentration of Vitamin B3 known to regulate oil, improve barrier function, reduce redness, and fade hyperpigmentation.
• Alpha-Arbutin (2%): A safe and effective skin brightener that works by inhibiting the enzyme responsible for melanin production, helping to fade dark spots.
• Retinol: A Vitamin A derivative that promotes cell turnover to smooth texture and fine lines. Included here at a low, supportive concentration.
• Zinc PCA: Helps to control excess sebum and offers mild antimicrobial properties, making it beneficial for oily and blemish-prone skin.
• Glutathione: A powerful antioxidant that helps to brighten the overall complexion and protect skin from oxidative stress.

Full INCI List:

Water, Niacinamide, Glycerin, Butylene Glycol, Propanediol, Alpha-Arbutin, 1,2-Hexanediol, Hydroxyacetophenone, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tromethamine, Glycereth-25 PCA Isostearate, Ethylhexylglycerin, Caprylic/Capric Triglyceride, Macadamia Ternifolia Seed Oil, Zea Mays (Corn) Kernel Extract, Disodium EDTA, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydrogenated Lecithin, Retinol, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Brassica Campestris (Rapeseed) Sterols, Cholesterol, Polyglyceryl-10 Laurate, Phytosteryl/Behenyl/Octyldodecyl Lauroyl Glutamate, Aluminum/Magnesium Hydroxide Stearate, Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate, Polysorbate 60, Sorbitan Isostearate, Fructan, Potassium Cetyl Phosphate, Glucose.

This product is formulated to be Fragrance-Free*.

• Scent: It contains no added artificial fragrances or essential oils. Any perceptible scent is inherent to the base ingredients themselves and is generally neutral and mild.
• EU Allergens: None of the 26 declarable EU allergens are listed in the INCI.

*Based on brand-declared INCI; trace fragrance components may persist from botanicals; patch test advised.

This is a high-strength product. Safety and careful introduction are paramount.

1. Patch Test (Mandatory): Before first use, apply a small, pea-sized amount to a discreet area of skin, such as behind the ear or on the inner jawline. Wait 24-48 hours to check for any signs of irritation like excessive redness, itching, or rash.
2. Slow Introduction: Start by using the serum only 2-3 times per week (every other night) for the first two weeks. Do not introduce any other new products during this time.
3. Listen to Your Skin: Mild, temporary tingling or flushing upon application can be normal with high-strength niacinamide. However, if you experience persistent stinging, burning, or peeling, reduce the frequency of use or apply it over a layer of moisturiser ("buffering").
4. Sunscreen is a Must: The presence of retinol makes your skin more sensitive to the sun. You must apply a broad-spectrum sunscreen of SPF 30 or higher every single morning.
5. Avoid If: Do not use on broken, wounded, or irritated skin. Discontinue use if a persistent rash develops. Not recommended for use during pregnancy due to the retinol content.

• Texture: A lightweight, slightly viscous gel-serum.
• Finish: Spreads easily and absorbs within a minute, leaving a hydrated, slightly dewy finish that is not greasy. May feel slightly tacky for a moment before fully drying down.
• Scent: Essentially odorless, with no added fragrance.
• pH: Not publicly disclosed by the brand. The formula contains Tromethamine, a common pH adjuster used to bring the final formulation to a skin-friendly pH, likely between 5.5 and 6.5.

• Issue: My skin feels red and tingly after application.
  Solution: This can be a normal reaction to 20% niacinamide. Reduce frequency to once every 2-3 nights. Apply a simple moisturiser first, wait for it to absorb, then apply the serum on top (this is called "buffering"). If irritation persists, this concentration may be too high for your skin.
• Issue: The product is pilling (rubbing off in little balls).
  Solution: You are likely using too much product or not allowing layers to absorb. Use only 2-3 drops. Wait at least 60 seconds before applying your next product. Pilling can also happen if layered over or under silicone-heavy products.
• Issue: I started breaking out after using it.
  Solution: Pause use for a week to let your skin calm down. Re-introduce it very slowly (once a week) to see if the serum is the culprit. The retinol content could be causing a "purge," but if breakouts are in new areas or look like an irritated rash, you may be sensitive to the formula. For those prone to fungal acne, be mindful of the oils and esters in the formula.

• Humid Summers: The lightweight texture and oil-regulating properties make this serum an excellent choice for Mauritius' hot and humid months. It can help manage the increased shine and congestion that come with the heat.
• Drier Winters / Air-Conditioning: During cooler, drier periods or if you spend a lot of time in air-conditioned spaces, you may find your skin needs extra hydration. Ensure you pair this serum with a more substantial, barrier-supporting moisturiser to prevent dehydration.
• Storage: The formula contains retinol, which can be degraded by heat and light. Store the bottle in a cool, dark place away from direct sunlight (like a drawer or cabinet, not on a sunny bathroom windowsill) to maintain its potency.

At Adilsons, every product is 100% authentic, sourced directly from the brand or its authorised distributors in South Korea. To verify your TIRTIR serum:

• Check for the holographic authenticity seal on the box, if applicable.
• Ensure the packaging print is crisp and high-quality, with no spelling errors.
• Scan any QR codes on the packaging which may lead to the brand's verification page.
• The product should have a clear batch number and expiry date printed on the bottle and box.

If you ever have any doubts about a product's authenticity, please contact us immediately on WhatsApp at +230 5 778 2336 with photos, and we will assist you.

• Brand Claim: TIRTIR's official website and product packaging state the concentrations of key actives (20% Niacinamide, 2% Alpha-Arbutin) and list the full INCI. The claim "dermatologist tested" is also made by the brand, though without public data.
• Ingredient Rationale: The benefits described are based on established, independent scientific research on the individual ingredients. Numerous studies confirm niacinamide's efficacy for sebum control and barrier function, alpha-arbutin's role as a tyrosinase inhibitor for hyperpigmentation, and retinol's effect on cell turnover.
• Community Consensus: Aggregated sentiment from communities like Reddit's r/AsianBeauty indicates that while high-strength (20%) niacinamide can be very effective for oil control and PIH in resilient skin, it frequently causes irritation, redness, or breakouts for those with sensitive skin or who are new to the ingredient.

This serum is an excellent choice for experienced users targeting stubborn post-inflammatory hyperpigmentation (PIH), visible pores, and excess oil. However, skincare is personal, and a different approach might be better for your specific needs.

• For a Gentler Niacinamide Option: The Ordinary NIACINAMIDE 10% + ZINC 1% 30ML — Choose this if you're new to niacinamide or have sensitive skin. It offers similar oil-control and brightening benefits at a more tolerable 10% concentration.
• For Targeted Brightening without High-Strength Niacinamide: The Ordinary ALPHA ARBUTIN 2% + HA 30ML — Choose this if your main goal is fading dark spots and you prefer to avoid high-strength actives. Alpha-Arbutin is a proven tyrosinase inhibitor that works gently on pigmentation.
• For Soothing & Repair alongside Brightening: Beauty of Joseon GLOW SERUM : PROPOLIS + NIACINAMIDE — Choose this if you have acne-prone skin with dark marks. It combines a gentler percentage of Niacinamide with calming Propolis to soothe inflammation while evening out skin tone.

Mindful Consumption Note: If you already have a comparable treatment serum at home, we encourage you to finish it first. This helps you avoid waste and allows you to get a fair and accurate assessment of each product's results on your skin.

• Packaging: The serum comes in a 30ml glass bottle with a dropper applicator for precise dosage. The glass is recyclable, but please check local Mauritian guidelines for proper disposal of the dropper component.
• Sustainability: TIRTIR is making efforts towards sustainability, but specific details for this product's carbon footprint or packaging sources are not publicly available. We encourage mindful disposal of packaging.
• Travel: The 30ml bottle is travel-friendly and meets carry-on liquid limits for air travel. Ensure the cap is tightly secured to prevent leaks.
• Microplastics: The formula contains Acrylates/C10-30 Alkyl Acrylate Crosspolymer, a synthetic polymer that provides texture but is considered a microplastic by some environmental groups.

TIRTIR (티르티르) is a popular South Korean beauty brand that champions the goal of achieving healthy, radiant skin that glows with natural light—often described as "watery" or "glass skin." Their philosophy is rooted in using safe, high-quality ingredients to bring out the skin's inherent luminosity. While globally famous for their viral high-coverage cushion foundations, TIRTIR also offers a comprehensive range of skincare products that are trusted in Korea for their efficacy and focus on skin health.

• Niacinamide: A form of Vitamin B3 that helps manage excess oil, brighten uneven skin tone, calm redness, and strengthen the skin's natural barrier.
• Alpha-Arbutin: A gentle but highly effective skincare ingredient that helps to fade dark spots and hyperpigmentation by inhibiting the enzyme responsible for melanin (pigment) production.
• Retinol: A derivative of Vitamin A that accelerates skin cell turnover. This action helps to smooth fine lines, improve skin texture, and clear pores. It also makes skin more sensitive to the sun.
• Zinc PCA: A salt compound that helps to control and balance oil production on the skin's surface and offers mild anti-bacterial properties.
• PIH (Post-Inflammatory Hyperpigmentation): The dark marks or spots that are left on the skin after a pimple, wound, or other skin inflammation has healed.
• MFDS (Ministry of Food and Drug Safety): The South Korean government agency responsible for regulating food, drugs, and cosmetics to ensure they are safe and effective for public use.

Can I use this 20% niacinamide serum every day?

For experienced users with resilient skin, yes, nightly use is possible after an initial adaptation period. However, we strongly recommend starting with a frequency of every other night for at least two weeks to assess your skin's tolerance. If you see any signs of irritation, stick to alternating nights.

Will this serum make me "purge"?

It's possible. The serum contains a low dose of retinol, which speeds up skin cell turnover. This can cause underlying micro-comedones to surface more quickly, resulting in a temporary increase in small breakouts. This "purging" should subside within 2-4 weeks of consistent use.

Why does it sting a little when I apply it?

A concentration of 20% niacinamide is very potent. A mild, temporary tingling or flushing sensation can occur, especially when you first start using it. This is not uncommon. However, if the sensation is painful, lasts for a long time, or is accompanied by significant redness or rash, you should reduce the frequency of use or discontinue the product.

Is this product Halal or Vegan?

We cannot confirm its status with certainty. The formula contains Cholesterol, an ingredient that can be derived from animal, plant, or synthetic sources. The brand does not specify the origin. While our review of the other ingredients found no other non-permissible components, we label it as Halal-Friendly* and Vegan-Friendly* with this caveat.

Best For:

Experienced skincare users with oily, combination, or resilient skin who are specifically looking to target stubborn dark spots, visible pores, and persistent shine.

Key Benefits:

• High-strength 20% niacinamide formula offers potent oil-regulating and pore-refining effects.
• Combines multiple proven brightening agents (Niacinamide, Alpha-Arbutin, Glutathione) for a multi-pronged attack on hyperpigmentation.
• Includes a low dose of retinol to assist with skin texture and smoothness.

Keep in Mind:

• The very high concentration can be irritating and is not suitable for beginners, dry, or sensitive skin types.
• Contains retinol, which makes daily, diligent use of sunscreen non-negotiable.
• The source of cholesterol is not disclosed, so it cannot be confirmed as fully vegan or Halal.

• Coverage: Island-wide delivery (Mauritius).
• Processing & Timing: Orders process in 1–2 business days. After pickup by our partners, delivery typically takes 1–5 business days.
• Express: Available by region. Please request on WhatsApp: +230 5 778 2336.
• Liquids/Sensitive Items: Serums like this one are available for pickup or door-to-door delivery only.
• Returns: No change-of-mind exchanges.
• Refunds: Applicable for items defective/damaged on receipt (report within 48h), wrong item, or manufacturing defects within 6 months. Opened skincare is non-returnable unless damaged on delivery.

Source of Truth: This is a quick snapshot. If anything differs, the policy pages below are final.

• Refunds & Returns Policy
• Shipping Policy