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Description
Homovanillic acid (HVA: 4 hydroxy 3 methoxy phenylacetic acid) is the deaminated and o methylated major catabolite of dopamine when it is inactivated by monoamino oxidase and catechol O methyltransferase. It is often used as an indicator of dopaminergic Carnitine 100000, 1000 ml, Orange, Dietary support Nutrend.eu L Carnitine, 500 mg, 30 vegetarian capsules Life Extension L Carnitine for Dogs: Why Energy Fades and Fat Accumulatesand How to Restore Metabolic Drive Safely La Petite Labs A cosa serve la carnitina? Dosaggio e controindicazioni
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4.4 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Amazing Serum
This serum is one of the best I’ve ever used, & I’ve tried many. It’s non-greasy, light, absorbs into skin well,, & has really improved the texture of my skin. I am amazed at how well it works on fine lines, deep wrinkles ,& large pores. Wish I had taken a before & after photo. Highly recommended, & I have mature skin.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Noticeable after one use!
Okay, I am writing this after receiving this product as of yesterday. After washing face last night I applied a liberal amount all over my face. I have a few large melasma spots on my face and pay close attention to them. I also have a large spot on my chest, so to my surprise this morning I immediately noticed they were all significantly lighter in darkness!!!! I cannot tell you how much my skin has responded to this product. I could only "hope' it would do something to improve the appearance,, but over night? YES! But, to anyone who reads this I have not had luck with other products I have tried and used for weeks. So, I imagine this is a case by case situation. What I can say is this product feels amazing on my skin. The texture is silky and does blend well with other skin products. I look forward to continuing to use it and applying it to my hands as well since I also have dark spots accumulating there. Overall I am blown away with the quality of this product. It was also packaged well and the bottle is very nice. You can tell alot of thought was put into this brand and the ingredients. thank you! Thank you! I strong ly recomment this to anyone who has melasma, sun spots, fine lines or dry skin. I am now a believer in korean skin care for anti aging.
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Reviewed in the United States on May 1, 2026
★★★★★ 4
A Korean Skincare Wonder!
This is truly an amazing skin product. I give it four stars only because it's a work in progress. I anticipate more great news to come. Regular use (two pumps a day, one a.m., one p.m.) are now beginning to reflect success. Skin on face is plumper. Big news is that the skin on the back of my hands - which I've ignored for years - is taking on a new dimension. All of this at such an affordable price. Can't wait to see the total impact. Love it
!
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Effective!
Works so well! Using on face, for crows feet, 11 lines, forehead and especially under eyes. It is reducing pores, diminishing fine lines and wrinkles, and giving glowing skin. Also using on elbows, wrinkled hands, and an old scar on my foot. My hands are plumping up and looking more youthful. The dark spots, discoloration and scar are fading and I’m sure will be fine with continuing use.
A word of caution though - don’t use on eyelids because it will break off, thin out and damage eyelashes.
I found that out the hard way and am now using lash serum to grow my once naturally long and healthy eyelashes back. They became half the length, much thinner and brittle.
But skin is looking good and folks are starting to comment! Only use around the orbital bone and avoid the lash lines!
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Ladies! Get this!! Especially if you're beginning to get wrinkles!
Im new to serums. Im 43 with problem skin, acne scars, and early signs of aging. I did a lot of research on what vitamins my skin is missing at this age and with my health issues. Everything pointed to topical retinoids and niacin. I am an absolute skeptic when it comes to the skin claims. I figured the price is right for something I can try for the first time ever. First off: the bottle is huge. Its simple and well packaged. It doesn't have any weird scent. Its yellowish but so are b vitamins so 🤷. Second: i put this on after showering and patting dry. Its definitely something to apply in the morning as it leaves your skin feeling very dewy. I rub in all over my neck and face, really working it into my crows feet and frown lines.
Third: you will have glass skin alone with this but you should still apply a sunscreen.
In about 3 weeks ive noticed 1 how soft and supple my skin is, how much my skin literally glows, my skin tone is more even, my acne has almost completely cleared. 1 month later of using 4 pumps daily and I still have over half the bottle left. Im sold. This is a game changer in my over 40 skin routine.
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Reviewed in the United States on April 20, 2026
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