--- product_id: 463680705 title: "Bye Bye Dark Spots 4% Niacinamide Serum – Visibly Reduces Dark Spots And Improves Skin Brightness In 8 Weeks – With 1% Ethyl Vitamin C – For All Skin Types – 30 Ml" brand: "it cosmetics" price: "฿4743" currency: THB in_stock: true reviews_count: 5 category: "It Cosmetics" url: https://www.desertcart.co.th/products/463680705-bye-bye-dark-spots-4-niacinamide-serum-visibly-reduces-dark store_origin: TH region: Thailand --- # Visible results in just 8 weeks 1% Ethyl Vitamin C for stable, brightening power 4% Niacinamide for targeted dark spot reduction Bye Bye Dark Spots 4% Niacinamide Serum – Visibly Reduces Dark Spots And Improves Skin Brightness In 8 Weeks – With 1% Ethyl Vitamin C – For All Skin Types – 30 Ml **Brand:** it cosmetics **Price:** ฿4743 **Availability:** ✅ In Stock ## Summary > ✨ Glow Up Your Skin Game — Bye Bye Dark Spots, Hello Radiance! 🍊 ## Quick Answers - **What is this?** Bye Bye Dark Spots 4% Niacinamide Serum – Visibly Reduces Dark Spots And Improves Skin Brightness In 8 Weeks – With 1% Ethyl Vitamin C – For All Skin Types – 30 Ml by it cosmetics - **How much does it cost?** ฿4743 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/463680705-bye-bye-dark-spots-4-niacinamide-serum-visibly-reduces-dark) ## Best For - it cosmetics enthusiasts ## Why This Product - Trusted it cosmetics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fast-Track to Clarity:** See noticeable improvements in skin brightness and clarity in only 8 weeks—because time is precious. - • **Expert-Backed Confidence:** Developed with plastic surgeons and dermatologists to ensure real, trustworthy results. - • **Dermatologist-Tested for All:** Gentle yet effective formula suitable for every skin type, including sensitive skin. - • **Next-Level Brightening Boost:** 1% ethyl vitamin C delivers a stable, bioavailable dose of vitamin C for radiant, even skin tone. - • **Power-Packed Pigment Fighter:** Clinically formulated 4% niacinamide visibly reduces stubborn dark spots and discoloration. ## Overview IT Cosmetics Bye Bye Dark Spots Serum combines 4% niacinamide and 1% ethyl vitamin C in a dermatologist-tested formula designed to visibly reduce dark spots and improve skin brightness within 8 weeks. Suitable for all skin types, this clinically-backed serum offers a stable, effective solution for hyperpigmentation and uneven skin tone. ## Description IT Cosmetics Bye Bye Dark Spots 4% Niacinamide Serum - Visibly Reduces Dark Spots & Improves Skin Clarity in 8 Weeks - With 1% Ethyl Vitamin C - For All Skin Types - 1 Ounce Review: Works over time Review: This is my second bottle works pretty good ## Features - BYE BYE DARK SPOTS - This hyperpigmentation serum is your secret weapon to fight skin discoloration. Formulated with 4% niacinamide and 1% ethyl vitamin C, it helps visibly reduce dark spots and improve skin clarity in just 8 weeks! - KEY INGREDIENTS - While pure vitamin C & niacinamide are two powerful, tone-evening, discoloration-fighting molecules, they cannot be formulated together in one product. Instead, we use a highly stable, bioavailable vitamin C derivative. - SKIN-LOVING FORMULA - IT Cosmetics Bye Bye Dark Spots Niacinamide Serum is your solution for age spots, melasma, and other types of discoloration. Our dermatologist-tested treatment is suitable for all skin types, even the most sensitive. - HOW TO APPLY - After cleansing in the AM & PM, apply 4-5 drops onto clean skin, using fingertips. Press serum into entire face and neck, avoiding eye area. Follow with Confidence in a Gel Lotion Moisturizer and, in the AM, CC+ Cream with SPF 50+. - IT REALLY WORKS - With clinical insights from plastic surgeons, plus ingredient and skincare expertise from dermatologists, IT Cosmetics creates problem-solving products that give you real results! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08YBVSPSG | | ASIN | B08YBVSPSG | | Active Ingredients | salicylic_acid | | Best Sellers Rank | #204,037 in Beauty ( See Top 100 in Beauty ) #1,233 in Facial Cleansing Creams | | Brand Name | It Cosmetics | | Country of Publication | USA | | Country of origin | USA | | Customer Reviews | 4.2 4.2 out of 5 stars (856) | | Customer reviews | 4.2 4.2 out of 5 stars (856) | | Date First Available | 20 May 2022 | | Global Trade Identification Number | 03605972655363 | | Is Discontinued By Manufacturer | No | | Item Form | Drop | | Item Volume | 30 Milliliters | | Item Weight | 0.03 Kilograms | | Item model number | TT3605972655363 | | Manufacturer Part Number | 3605972655363 | | Material Features | Dermatologist Tested | | Material Type Free | Alcohol Free | | Model Number | TT3605972655363 | | Number of Items | 1 | | Product Benefits | Cleansing,Moisturizing | | Product Dimensions | 25.4 x 5.08 x 6.86 cm; 30 g | | Recommended Uses For Product | Provides Vitamins | | Scent Name | Unscented | | Skin Tone | All | | Skin Type | All, Sensitive | | Special Ingredients | niacinamide, vitamin c | | Target Use Body Part | Face | | Unit Count | 9 Count | ## Product Details - **Product benefits:** Cleansing,Moisturizing - **Scent:** Unscented - **Skin type:** All, Sensitive - **Special ingredients:** niacinamide, vitamin c - **Use for:** Face ## Images ![Bye Bye Dark Spots 4% Niacinamide Serum – Visibly Reduces Dark Spots And Improves Skin Brightness In 8 Weeks – With 1% Ethyl Vitamin C – For All Skin Types – 30 Ml - Image 1](https://m.media-amazon.com/images/I/61eJY0aAl3L.jpg) ## Questions & Answers **Q: Can you use this for dark eye circles too??** A: I wouldn’t use it for anything! It didn’t work. 🤷‍♀️ **Q: is this only for face? or can also be used for body?** A: The product description says it is for the face only. **Q: Does this have an unpleasant odor when applied to the skin?** A: This product does not unpleasant odor. **Q: Can it be used on arms** A: I used it in my legs ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by S***U on 6 August 2025* Works over time ### ⭐⭐⭐⭐⭐ Review *by B***I on 5 January 2026* This is my second bottle works pretty good ### ⭐⭐⭐⭐⭐ Review *by S***A on 15 November 2025* Lascia la pelle liscia e morbida un viso ringiovanito veramente eccezionale. ## Frequently Bought Together - IT Cosmetics Bye Bye Dark Spots 4% Niacinamide Serum - Visibly Reduces Dark Spots & Improves Skin Clarity In 8 Weeks - Facial Serum with 1% Ethyl Vitamin C - For All Skin Types - 1 Fl. Oz - IT Cosmetics Hyaluronic Acid Serum Visibly Plumps Skin & Smooths Lines In 2 Weeks - With Peptide + Vitamin B5 - Vegan Formula - 1 fl oz - IT Cosmetics Your Skin But Better Makeup Primer+ - Extends Makeup Wear, Hydrates Skin, Refines the Look of Pores - With Glycerin, Bark Extract & Ginger Root Extract - Oil-Free Formula - 1 fl oz --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/463680705-bye-bye-dark-spots-4-niacinamide-serum-visibly-reduces-dark](https://www.desertcart.co.th/products/463680705-bye-bye-dark-spots-4-niacinamide-serum-visibly-reduces-dark) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-29*