21st Century

21st Century Super Collagen Plus Vitamin C Tablets 180 Count

$15.99

1314+ bought in the past month

About this item

  • 6000 mg of Collagen per serving
  • Hair, Skin, Nails, Bone & Joint Support
  • Gluten Free
  • During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
$15.99

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Product details
Brand21st Century
FlavorUnflavored
Primary Supplement TypeCollagen
Unit Count180 Count
Item FormTablet
Item dimensions L x W x H3 x 3 x 5.5 inches
Special IngredientsCollagen
Diet TypeGluten Free
Product BenefitsAnti-Aging, Hair Growth, Support Nail Health, Support Skin Health
Age Range (Description)Adult
Technical specifications
product_dimensions3 x 3 x 5.5 inches; 9.14 ounces
item_model_number22424
date_first_availableSeptember 1, 2018
manufacturer21st Century HealthCare, Inc.
best_sellers_rank#13,187 in Health & Household ( See Top 100 in Health & Household ) #765 in Collagen Supplements

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Customer reviews

4.6601 ratings
  1. 588%
  2. 413%
  3. 30%
  4. 20%
  5. 10%

Customers say

Customers find the lysine supplement works well, with one mentioning it helps with collagen levels and joint health.

★★★★★

Works for us

The Mad SquirrelMay 28, 2025✓ Verified purchase

so being lazy I got these on Amazon instead of just going up the street and pick him up for about a dollar and a half cheaper. My wife takes these and I take these and they work fantastic as 21st century has always come out with good product. Lysine is definitely needed for several things skin muscle. What have you and for us? These are great. They are a little big however, but when you’ve been taking them for a while, you get used to them. Read more

Review image 1
★★★★★

Pills are HUGE!!

DaleAugust 20, 2025✓ Verified purchase

Good value. Pills are ENORMOUS, though... Read more

★★★★★

My daily go-to to keep cold sores under control

Loves Being A MomNovember 3, 2025✓ Verified purchase

I’ve had cold sores since I was a kid, and they can be really painful whenever stress hits. I started taking this Lysine supplement daily, and it’s made a huge difference for me. When I’m consistent with it, I hardly ever get flare-ups, and if I do, they’re much smaller and heal faster. I like that the tablets are easy to take, the bottle lasts a long time, and it’s affordable compared to some of the other brands I’ve tried. It’s become part of my daily routine now — a small habit that’s helped me feel more confident and in control, especially when life gets stressful. Read more

★★★★★

Great for acne and skin

HoléMolèMarch 9, 2026✓ Verified purchase

Love this stuff. Keeps my skin clear and vibrant. Ppl notice the difference when I'm consuming vs not. Highly recommend high dosing with lysine for persistent acne issues if u r over 40. Any age really but this is the only thing I've found that actually works and that's natural. I have noticed a side affect though when I stop using... I tried to quit taking it several times just to see if my acne had cleared up on its own (which it had not) but on about day four of no lysine in my system I began to breakout in huge red painful pimples. These pimples were different from what I'm used to. They were big and painful bumps on face. It happened 3 times and I tried to quit 3 times but as soon as I got back on, it began to clear up noticeably the next day. Now, that was several years ago. I've been taking this product for about 8 years, so 4 years ago was the last time I tried to wean myself off and had a serious breakout. But I recently stopped taking it and I've had no breakouts. It's been over a year. I went maybe 4 or 5 months without it before I decided to start it again. I noticed the difference in the look of my skin without it. It really brings a brightness to ur face, to the skin. And ppl notice the difference too. So I now take it for beauty needs versus acne needs. I still get a pimple here and there but it's nothing compared to how I look without it. The pills are huge tho. Be careful when swallowing lol 🤦🏽‍♀️ Read more

★★★★☆

Hard to swallow

Louise ScottApril 30, 2025✓ Verified purchase

Pills are huge! I have to cut in half to swallow. Read more

★★★★★

Would buy again.

RhondaOctober 2, 2025✓ Verified purchase

Big bottle! Would buy again. Read more

★★★★★

For my dogs

CustomerJanuary 22, 2026✓ Verified purchase

Actually I give to my dog for a medical condition with her nails. This with other supplements have held her at bay from her nails falling off. If its not broken.. i will use them for her for life. Read more

★★★★★

Good size easy to swallow

jade1258July 2, 2025✓ Verified purchase

Helps with cold sores Read more

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