(34 reviews)


In-stock. Note to International Customers: Your country may impose an import/customs fee on TIGHTEYE. While we cannot foresee whether or not this will occur definitively, no funds from this fee are paid to ScienceSerum™

TIGHTNECK™ helps to tighten, firm and lift loose skin while improving skin tone, resiliency and elesticity.

TIGHTNECK™ Clinical Anti-aging Neck Serum is a rapidly-penetrating, lightweight SmartGel™ scientifically formulated with key anti-aging ingredients Hyaluronic Acid, Vitamin C, Bio-peptides, Green Caviar Extract, Caffeine and Argireline.

How does TIGHTNECK™ work?

Upon application, TIGHTNECK is heated by your body's natural temperature, triggering the absorption of key anti-aging ingredients by your skin. At the same time you will feel TIGHTNECK contract on the surface of your skin, providing you with immediate tightness. The combination leaves you with results you can see and feel in 5 minutes*. After your treatment gently wipe TIGHTNECK from your skin with a damp cloth. NOTE: On average it will take 5 minutes for the serum to dry; your treatment is not fully done until the serum has completely dried on your skin. At times this can take more than 5 minutes (8-10 minutes) depending on your body's natural temperature. 

How is TIGHTNECK™ different from TIGHTEYE?

The skin around the eye area is very thin and delicate whereby loose skin on the neck is thicker. While both products utilize the same technology, TIGHTNECK™ is scientifically formulated to be THREE TIMES STRONGER as TIGHTEYE plus contains three different types of Hyaluronic Acid. Given it is a stronger mixture, you SHOULD NOT use TIGHTNECK™ on delicate eye skin, nor should you use TIGHTEYE™ on the neck area as it requires a stronger formula for proper results.

What is SmartGel™ and is if 100% safe?

SmartGel™ is a liquid which responds to heat in an extremely precise way. Our propriety patented SmartGel™ is 100% safe, non-toxic, fragrance-free and paraben-free.

Does any other anti-aging product on the market contain SmartGel™?

Aside from TIGHTEYE, TIGHTNECK is the only product on the market currently using it and its technology. 

How do I use TIGHTNECK?

Apply a generous amount of TIGHTNECK™ to your neck and upper chest area. DO NOT PAT SERUM ON! Do not be afraid to rub it into the skin, thus resulting in a substantial layer. Leave on for 5 minutes or until the product has visibly dried on the surface of your skin. At the end of your treatment gently wipe TIGHTNECK™ off completely with a damp towel. It is important to remove all product from your skin after your treatment as the gel is not meant to be left on the skin.

How does TIGHTNECK™ work in just 5 minutes?

We have scientifically-formulated TIGHTNECK™ to respond to the temperature of your body at a rapid rate by way of our propriety patented SmartGel™ technology. Please note that due to your body's natural temperature, drying time may take anywhere between 5 and 10/12 minutes. DO NOT WIPE OFF your treatment before the serum has fully dried on your skin.

What are the ingredients in TIGHTNECK™?

Hyaluronic Acid, Vitamin C, Bio-peptides, Green Caviar Extract, Caffeine and Argireline:

  • Hylauronic Acid nourishes and hydrates collagen which gives skin its firmness. Hylauronic Acid keeps the collagen moist and elastic. It also acts as a space filler by binding to water and keeping the skin wrinkle-free.
  • Vitamin C is an anti-oxidant that slows the rate of free radical damage. Free radicals are unstable molecules that damage collagen and cause skin dryness, fine lines, and wrinkles.
  • Bio-peptides are necessary for the skin to increase hydration to the collagen around the eyes. Bio-Peptides come into action to give collagen a boost. They also partner with amino-acids which are useful in the retention of skin moisture. Bio-Peptides increase circulation around the eyes. Circulation is essential in giving your eyes a healthy, vibrant and youthful appearance.
  • Green Caviar Extract has been proven to lessen key signs of aging: Skin dullness, fine lines, wrinkles, sagging and hyperpigmentation (darkening of the skin) while keeping the skin moisturized. Green Caviar Extract speeds up the natural production of collagen around the eyes by 67%. It is also rich in vitamins and has been shown to slow down the aging process by moisturizing the skin. Caviar Extract firms your skin and provides the highest possible level of hydration.
  • Caffeine contains antioxidants, which help 'perk up' your complexion. Caffeine's ability to constrict small blood vessels and reduce inflammation is an asset in a number of products designed to minimize dark circles and sagging skin under the eyes. These same anti-inflammatory qualities serve caffeine well as an ingredient in cellulite creams, where caffeine's ability to cause dehydration is put to good use drawing excess fluid from fat cells to improve the skin's appearance.
  • Argireline is the first peptide to reduce wrinkles and expression lines. When applied topically, it alters biochemical pathways involved in muscle contraction so that facial muscles can't contract with as much force. By doing this, it reduces the appearance of dynamic wrinkles. Wrinkles that are visible when smiling or frowning become less noticeable.

Are there any other ingredients in TIGHTNECK™?

TIGHTNECK™ is a patented, proprietary beauty product. Aside from the ingredients listed above the only other items in our product are water and our SmartGel™ base (serum) which is 100% safe, non-toxic, fragrance-free and paraben-free.

Do you test your products on animals?


Is TIGHTNECK fragrance and paraben-free?


Is TIGHTNECK™ safe to use on acne prone or oily skin?

Yes, it is for all skin types; there is nothing in TIGHTNECK™ that will be harmful to the skin.

Can I use more than one coupon code per purchase?

No, you can only use one coupon code or discount code per purchase. 

I received TIGHTNECK™ but serum is not pumping from the bottle. Why is this?

TIGHTNECK™ is formulated to become a solid when it comes in contact with heat (your body's natural temperature will heat the product and within about 5 minutes it will dry on the skin). If you live in a very warm or hot climate and upon receipt of your product no serum is pumping out please put it in your refrigerator for 30 minutes at which point it will turn back into a liquid and will be ready for use. If you are still having trouble with the bottle please email us at info@scienceserum.com

Do you offer a Money-back Guarantee?

Yes! If you are not happy with your product simply send it back to us within 30-days for a full refund less $10.00 for S&H. Please note: No more than 1/4 of the serum should be removed from the bottle in order for your return to be accepted. Please send TIGHTNECK™ back to us with a copy of your confirmation order email and/or your order number to:

194 John B. Scott Blvd.
Norton, MA 02766
Apply a dime-size amount of TIGHTNECK™ to the neck area. Leave on for 5 minutes OR until serum has completely dried on the skin; it will feel like a very thin layer of tape. DO NOT PAT SERUM ON; apply a generous layer of serum and do not be afraid to rub into skin. At the end of your treatment wipe gel off with a damp towel. It is important to remove all product from your skin after your treatment as the gel is not meant to be left on the skin.

TIGHTNECK™ Serum Reviews

Based on 34 reviews

Goodbye Tech Neck

Posted by verified purchaser on Oct 29th 2016

I'm 62 and have recently noticed some sagging neck skin and creases. This product erases the tech neck crease and generally improves the appearance of the neck skin. Love it!!

UGH! The turkey neck. . .

Posted by Mimi on Oct 27th 2016

I am early 40s and have had the unfortunate genetics to form the dreaded turkey neck. I've tried various "specialty" neck products over the past couple of years with no noticeable difference. . .UNTIL I tried TightNeck. This serum makes a visible difference immediately but the results get better and last longer with continued use. I just repurchased my second bottle. The only thing that will completely take away the issue is surgery and for me that isn't an option at this time. However; I am beyond pleased with the results I've received from Tightneck serum. Thank you!

Shocked!! It really works

Posted by Jeanne on Oct 1st 2016

Saw a make up tutorial video by Wayne Goss the Make up Artist. He picked 4 - 5 of his top picks for anti aging. Tighteyes was No. #1. So, I thought am I actually going to buy yet another product that doesn't really work............The thing is Wayne Goss is FABULOUS AND HONEST - So, when he says it works, it really does.

After two weeks of regular use (directions followed) my 48 year old eyes (and I am not joking) look like they are 28 - 32 year old eyes. I am want to apply it everywhere....lol. The product is precious to me. I hope they never go out of business and I hope the price does not increase (I can actually afford it).....Thank you for the product. It does wonders,

Thank you!

Joanne (Canada)

The best version of a botox-type solution without botox ever!

Posted by Mary on Sep 27th 2016

Gosh, I thought I'd never do away with the beginning of a turkey neck ever, till I started using this. So easy to use, and so effective, I never imagined it would work like this till I tried it. And I'm not getting any bonus or anything for reviewing product. It just works. So forget the needles, forget the expenses, and only spend a few minutes at home. You'll see it work in front of your own eyes!

M. from Spain

I'm a fan

Posted by EKA on Sep 26th 2016

I started using this a month ago when I first started with tight eye. Within days, tight eye really seemed to make a significant impact. My neck is responding but more slowly. I'm 50 and recently lost 50 pounds so my age and saggy skin due to weight loss may be the added challenge. I'm going to stick with it, if I can get the type of results as I do with tight eye,my hen I'm all in!

Great products!

It helps!

Posted by Cristiana on Sep 12th 2016

I've been using this product for just a couple of weeks and I can say that this works! I'm 50. This product helps a lot to make my neck appear younger.
In addition to this, I also want to thank you for the excellent delivery service to Italy.

Absolutely the best

Posted by Barb on Aug 19th 2016

I am on my second bottle of tight neck and started seeing a difference within two weeks of starting the first bottle. I don't know why this magic elixir works but it does. Love it!Ę


Posted by Bonnie on Aug 18th 2016

Loveeeeeeeeeeeeeeeeee this!!!!!! My neck no longer looks like a wrinkled old lady neck, my neck looks about 10 years younger! I will continue to use this every single day! Only thing is it only lasts about 3 weeks, but completely worth it and still 80% cheaper than botox!Ę


Posted by Julie K. on Aug 18th 2016

I absolutely am in love with the Tightneck serum. This has been by far so much better than botox. No pain, 5 minutes, it's magical! 10/10 recommend!!!