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Description
TIRTIR Niacinamide 20% Serum 30mlTIRTIR Niacinamide 20% Serum (often known as the Niacinamide 20% Serum or part of their specialized treatment lines) is a high potency formula designed for targeted skin correction. Because 20% is an exceptionally high concentration of Niacinamide (Vitamin B3), this serum acts as an intensive treatment. Advanced Pore Minimization & Texture Refining How it works: High concentration Niacinamide helps normalize sebum (oil) production. When pores aren't
TIRTIR Niacinamide 20% Serum (often known as the Niacinamide 20% Serum or part of their specialized treatment lines) is a high-potency formula designed for targeted skin correction. Because 20% is an exceptionally high concentration of Niacinamide (Vitamin B3), this serum acts as an intensive treatment.
Advanced Pore Minimization & Texture Refining
- How it works: High-concentration Niacinamide helps normalize sebum (oil) production. When pores aren't stretched out by excess oil and debris, they naturally tighten and appear smaller.
- Result: It significantly smooths out rough skin texture and orange-peel skin appearance
Powerful Hyperpigmentation & Dark Spot Fading
- How it works: Niacinamide inhibits the transfer of melanin (pigment) to the skin's surface cells.
- Result: It targets stubborn dark spots, post-acne marks (PIH/PIE), sun damage, and overall uneven skin tone, leading to a much brighter complexion.
Intensive Sebum and Acne Control
- How it works: It regulates the sebaceous glands to reduce excess oiliness without stripping the skin of moisture. Its inherent anti-inflammatory properties help soothe active breakouts.
- Result: A noticeable reduction in greasy shine, fewer clogged pores, and a calmer, less acne-prone canvas.
Barrier Support & Anti-Aging
- How it works: Niacinamide stimulates the natural production of ceramides and fatty acids in the skin barrier.
- Result: It strengthens the skin's defense system, locks in moisture, and helps plump the skin to reduce the appearance of fine lines.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Sturdy iPad case
Color: Black
Great case. Sturdy and easy to install. Would purchase from this seller again.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Durable and Rugged
Color: Black
I've had it for a few weeks now. It was a replacement I bought after buying several vinyl type covers. This one is a good gauge of plastic and rubber. The rubber seems pretty strong and it protects the iPad well on the corners and back. The back is mostly covered except for the Apple logo in the center. In addition to protecting the corners and also protects the camera lens as the rubber after insulation is a little bit higher than the lens so when you put this down, it's not going to scratch the lens. It has a pen slot, which I like and plenty of room to grip the device if I'm carrying it from place a place or when I'm using it, I can grip the edge and not touch the screen. One of the things I would've liked included is a screen protector, but nothing covers the screen. I also miss the folio type cover because the screen will gather dust now. But, Apple screens are fairly durable so I'm not too worried about breaking it. It was easy to install. It came in as it came in a couple of pieces that you just pressed together. All the controls are obvious as they are under the rubber, but they look like keys. One more thing I might bring up is the charging port. It's easy to get to even though it's a little deep. On my iPad the touch sensor is on the on off button and it is a little harder to do than if I didn't have any case on it, but that is to be expected. It also has an easel that unfolds from the back if you want to sit it up, but I don't use it for watching anything since I have a real TV set. So far I like it and I'm glad I bought this as I don't think it's going to wear out as quickly from me handling it as the others did. The value was good as long as it lasts.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
iPad case is great
Color: Black
Fits great. Like the stand feature on the back
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Screen protector
Item Package Quantity: 2
I had a hard time applying it to my screen because of the size. I can say it may take 2 people to apply it. Good quality.
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Reviewed in the United States on November 22, 2025
★★★★★ 5
Be certain that device screen is COMPLETELY dust/lint free.
Item Package Quantity: 2, Item Package Quantity: 2
This comes in a two-pack, and both were certainly needed. After installing the screen protector the first time, I saw that there were several teeny/tiny specks of dust or lint that were visible and caused circles to form around the specks of dust/lint where the screen protector didn’t firmly attach to the iPad screen. It was not fixable. I learned from that experience. So, when I installed the second screen protector, I made sure there was no dust/lint on the iPad screen, and made sure that the sticky backing of the screen protector was also COMPLETELY free of dust/lint. Be sure to use the included “Perfect Screen Guard” to pick up the lint/dust before you finally place the screen protector on the device screen!! I give this a “5” because it did great after being certain that there was no dust/lint.
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Reviewed in the United States on October 5, 2023