Youtheory Review: Don’t Buy Before You Read This!

Expert rating: stars-icon     By Natalie K (Senior Reviewer) January 11, 2024       Advertising Disclosure

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What is it?

Youtheory is a daily skin health supplement that is designed to increase collagen production and improve overall dermal wellness. Youtheory is taken orally as a tablet instead of applied topically, where it offers its value in terms of providing core-level nutrients rather than cosmetic effects. Its advertising says that Youtheory is also beneficial for the hair and nails, as well as basic immune health and general biofunctionality.

Our panel of health, wellness, and beauty experts believe that Kremotex is the most effective daily skin care treatment on the market. It has been shown to be the most effective product for both increasing cellular hydration and collagen generation. Click here to see the many other benefits that Kremotex can offer to users’ skins.

Youtheory Ingredients and Side Effects
Vitamin C Collagen

Vitamin C: One of the most important chemicals for the overall health and wellbeing of the body and a key part in a number of biological processes. It is needed for proper immune system functionality, cholesterol regulation, and iron absorption.

Vitamin C is especially crucial in the skin formulation process because it is one of the main reactive agents required for the synthesis of collagen, along with proteins, amino acids, and other vitamins and minerals. Collagen is the main building block of the skin, bones, joints and other tissues in the body and the most effective skin care products are generally those that are best able to stimulate its generation.

Vitamin C is also high in antioxidants, which are key to skin health in a different kind of way. Antioxidants are what your body uses to fight free radicals, the damaging atom groups that destroy cell membranes, leading skin to sag and loose its luster. Free radicals are released or created when your skin is exposed to UV radiation, smoke, and other environmental hazards.

As we age, our bodies naturally produce less collagen and antioxidants and it becomes more necessary to get outside help in lotion or supplement form. Vitamin C is safe for the vast majority of users and is generally side effect free if taken in reasonable quantities.

Collagen: A raw, powdered form of the same protein complex that was discussed above. This form of collagen is derived from animal sources, usually cow, shark, or poultry.

Some potential customers may assume that the best way to increase collagen production is to just ingest it directly, however this is not exactly the case. Collagen is a highly complex compound that needs to be broken down and processed by the body before it can be used, and those component parts may or may not end up being used for collagen production again.

Chemicals like vitamin E or A have shown more aptitude at actually encouraging the body to make more collagen, whereas collagen itself is mostly just a somewhat useful source of amino acids and basic proteins. It is usually considered healthy for most users and there are no side effects to pure, uncontaminated collagen.

There are some slight health risks with collagen supplements because of their animal origins. Collagen is derived usually from cartilage and bone taken from spinal tissues, which is where some diseases like mad cow live. There will always be a small chance that collagen may be contaminated in some way as long as it is animal in origin. Those individuals with sensitivities to poultry or bovine derived products may also be at risk for allergic reaction.

For our experts up-to-date rankings of the most effective skin care products currently available, follow this link.

Youtheory Quality of Ingredients

Barring the slight chance that the batch of collagen you are using is contaminated with mad cow disease, avian flu, or some other form of animal spongiform disease, there is little chance that Youtheory is going to be harmful for any given user. There are no short- or long-term health concerns related to either collagen or vitamin C directly, and both have a track record as being useful to the body in a number of ways.

While Youtheory may not be detrimental to most users, it also may not be particularly helpful for skin health either. Much more goes into the collagen formulation process than just vitamin C and the materials provided by powdered collagen.

As mentioned, vitamins A and E are also required, as are amino acids, zinc, copper, various protein chains and more. Not all of those chemicals can be derived from ingested collagen, leaving Youtheory as a rather incomplete blend. It may theoretically get your body two steps closer to the creation of collagen, but by itself it is not likely to be enough to impact skin health in any significant way.

Click here to see which skin care ingredients have shown to be the most effective at naturally increasing collagen levels, dermal renewal rates, and cellular regeneration.

The Price and Quality of Youtheory

Youtheory is sold both through their own website and through a number of other online retailers. While there is some fluctuation, in general its prices are similar to these:

  • 1, 290-count bottle of Youtheory collagen tablets: $13.22
  • 6, 290-count bottle of Youtheory collagen tablets: $74.00

In keeping with the limited ingredients list of Youtheory it is one of the more affordable daily skin care market. This is tempered by the fact that in order to really see results from Youtheory one would have to supplement it with another skin care product in order to see any significant results.

Follow this link for more information about which brands of skin care products have been shown to be the most effective for users with hyperpigmentation, psoriasis, eczema, and other types of serious skin conditions.

Business of Youtheory

Youtheory is owned by nutritional supplements manufacturer Nutrawise. They can be contacted through these platforms:

Phone Number: (714) 361-4660

Address: 9600 Toledo Way

Irvine, CA 92618

Email: Nutrawise does not choose to publish an email address, however they do have a customer comment form for electronic communication on their contact page.

It should be noted that Nutrawise has recently been named in several legal actions, including one in 2024 that involved mislabeling their products and misrepresenting their potential health benefits.

To see our team’s before and after photos showing the results of different kinds of skin care treatments, click here.

Customer Opinions of Youtheory

Our reviewers were not surprised by the large amount of customers that were disappointed with the effectiveness of Youtheory, however they were somewhat surprised by the amount of people complaining about negative side effects. Many of their reports were similar to these:

Youtheory was NOT effective for my skin, but it was very effective at giving me stomach problems.

“I was taking this for several weeks and I noticed my hair started falling out more and more. I started getting bald patches and was really worried, but then I stopped taking Youtheory and my hair began coming back.

“After two or three weeks on Youtheory I started having some terrible effects – I was losing my hair, my eyes were puffy and swollen, and I have the worst gas! I looked and felt like death!”

The majority of the customer reviews were simple complaints of not noticing any difference, however there were also accounts of hair loss and gastro-intestinal distress as mentioned above, as well as brittle, discolored nails, weight gain, and headaches.

Follow this link to find out which brands of over the counter skin care products our experts rated as the safest and most effective.

How Does Youtheory Compare?
  • Product Name
  • User Rating
  • Good Company Reputation
  • Quality Ingredients
  • Money Back Guarantee
  • Youtheory
  • 39/100
Conclusion – Does Youtheory Work?

Our team of experts has reviewed the ingredients, the customer responses, and all of the clinical data surrounding Youtheory brand collagen tablets and they were surprised at what they found.

Given the ingredient profile of Youtheory, one would expect the effects to be general, though largely imperceptible benefits to overall bodily wellness. However there were hundreds of customer reviews of the product and the frequency of their reports of unpleasant side effects was shocking.

It is unclear why a product with such basic, well-tolerated ingredients would provoke such a high frequency of negative results. This could be due to a number of factors including impurities in the additives, which is especially likely given the animal sources that they are derived from, the mislabeling of the product, which Youtheory’s manufacturer has been accused of before, or it could be general low-quality manufacturing that makes the product hard to tolerate in many people.

Our reviewers would not have recommended Youtheory on its own before they heard all the accounts from disappointed customers, due mainly to their belief that it would not be particularly successful at actually helping the body generate new collagen. After finding out about how many people have had unpleasant experiences, they would like to actively caution users against purchasing Youtheory products.

Our team encourages readers looking for daily skin care products to try Kremotex. It is known in the industry as one of the most effective core-health skin treatment programs currently available. Click here to find out more about why so many skin care professionals have been ranking Kremotex at the top of their list.

29 Responses to Youtheory Review

Andrea says:

I heard about taking collagen supplements for hair growth and decided to give it a try. I bought the YouTheory brand and took the suggested 6 capsules for the first day (I was surprised at the amount I had to take). The second day, I noticed my hair was falling out in clumps when brushing my hair. I was shedding the entire day and decided to stop taking the supplements. Thank goodness I stopped taking it because even now (1week later) I’m still shedding a lot of hair and notice my hair getting thinned out but I do notice a decrease of hair loss. After that incident, the bottle found a new place in my trash bin where it belongs.

Lillian Lowry says:

Really …. Im on my 4th bottle my hair is fine

Anonymous says:

experienced terrible red rashes after using youtheory advanced formula collagen 1,2,3

August says:

Initially I do not believe in the reviews here. But finally I experienced it myself. After two days of use (2 x 6 tablets), I started to feel pain in my stomach, then I had a high fever. After recovering from a fever, I will try to consume it again to make sure that this product is the cause. For those of you who want to try this product, buy the smallest packaging to try it.

H says:

I took collagen 6 pills for 4 days, I have stomach crumbs, that don’t go away. Also constipation….I don’t know about fever….but we are at 24 degrees and I’m feeling chills. I going to return this pills to cotsco. Hope my side effects clear soon. Don’t buy it.

Christy says:

Is it safe to take while on breastfeeding? My baby got rashes on his butt.

nan says:

experienced terrible red rashes on both forearms and extreme itchy eyes 2 days after using youtheory advanced formula collagen 1,2,3 bought from costco.

Chris B. says:

I bought this from Costco also. I’ve gotten horrid headaches, stomach pain and diarrhea each time I’ve taken it. Ruled out other factors to be sure it wasnt other foods, beverages or vitamins. So hoped this to be a good supplement, but will return it if possible.

KIM says:

I had terribly itchy eyes and nose. This could possibly be the reason. I have been taking this about a month.

Trixie PH says:

I was a Neocell Collagen user but suddenly got my stock ran out so i decided to try a new one, there I bought Youtheory Collagen Capsules Type 1,2,3 (390 caps). Night at first try, I noticed that my stomach aches alot even when i woke up in the morning and i feel i little bit funny, acidic and headaches. This is my 2nd day of taking it and i’m already regretting buying this brand! This is so bad,i should’ve of stayed on Neocell. 🙁

Robert Hults says:

I like their product for sleep. I tried to ask a couple of questions and was treated like a bum. A few months later(April 2018) I noticed their Sleep Powder had been removed from dozens of central FL Walmart stores. I thought I would do them a favor and left a voicemail saying they had a problem here. No response so I called back. I was told to leave a message for “the Doctor” and again – no response. This company just does not offer effective Customer Service. It is among the worst I have encountered. Glad this just involves good manners and communications and not a money or legal matter.

Cwpc says:

After taking this product my eyes became swollen and terrible rash on elbows and hands. I stopped taking and made the mistake of trying 6 months later. Same scenario. They are going in the trash.

Anita Wilbanks says:

I had a terrible strange headache, puffy eyes and face and gastro problems. When I stopped taking everything went back to normal. I would caution anyone from this product.

Chris B. says:

I bought this from Costco also. I’ve gotten horrid headaches, stomach pain and diarrhea each time I’ve taken it. Ruled out other factors to be sure it wasnt other foods, beverages or vitamins. So hoped this to be a good supplement, but will return it if possible.

Sue says:

God !!
I’ve been a user of collagen for 3 yrs
I left a gap of one month before I tried this brand .
I took it for 6 weeks with 6 tabs as suggested
6 weeks prior I’d began to have terrible lower back and muscle pain and my knees were cracking . I was energyless and needed to have afternoon naps quite honestly the worst six weeks of my life my hubby had noticed my eyes were looking yellow . I reflected and realized all these symptoms began after taking this collagen . I stopped immediately and 2 weeks on after detoxing my kidneys I feel wonderfull .

Disappointed says:

Wow I have been taking six Youtheory tablets for about 5 days. The first day I experienced some rash and stinging on my thighs. I wasn’t sure if it was from Youtheory so I continued taking the six a day. I’ve been noticing rash now on forearms and belly. My face itches. My teeth are sensitive. I was just wondering if these effects would go away once my body got use to the tablets. I’m glad I came here. Oh well, I won’t be taking Youtheory anymore.

Wm P says:

I took the six pills required at 2:00pm. Was very impressed as a ongoing knee pain at the first knee movement required to get out of bed was simple gone.

Lillian says:

I have just finished my second bottle of Youththeory Collagen – 6 tables a day, and I have never experienced ANY of these symptoms. Will purchase another.

Patricia Otero says:

My hair is longer and thicker which is what I wanted. Nails were in really bad shape from all the gel nails that I used so they will take a while to heal.

Kylie says:

Been taking these for 6 months. Absolutely can tell a difference in my hair , my hair was falling out and was very dry and brittle . My skin was terrible dry even though I was using a good moisturizer . 6 pills every day I love this product and will continue using this as long as possible .

MLH says:

I purchased this at Costco and in less than a week I had terrible stomach pain and a very elevated temperature. This went on for a few days The only thing that changed was I had started taking Youtheory so I googled the side effects and came across others with the same issues. I’ll be returning these to Costco

Anne says:

After taking youtheory for 2 days, taking 2 tabs per day. I had a very weird feeling about my stomach and began having a very bad diarrhea for a week.

Chris says:

I used Neocell Type 1 & 3 collagen and it was very effective from day 1. After it ran out, I started taking Youtheory type 1, 2 & 3 and was struck down with diarrhea. I had to stop taking until the diarrhea stopped and start again. I took Neocell morning on empty stomach or at night before I go to bed, I was OK. But with Youtheory, I suffered from diarrhea. Now I am only taking one to 2 hours after lunch which did not cause the diarrhea if I take the maximum of 3 pills. The pain in my osteo arthritic fingers was less with Neocell but they were more painful with Youtheory even though it contain type 2 collagen. My hands looks dry with Youtheory so far. I hope they will get better with time and I had been taking Youtheory for one month.

Wanda says:

Why u have to take 6 Pills a day

Summer Maestas says:

I got a bottle of youtheroy from Costco. It made me breakout and I started getting welts on my arms and face. Now I have a huge bottle of something I cannot use. I was a daily user of vital proteins and Costco was out of stock so I tried this. Horrible mistake

abelardo asistido says:

I have been taking the Youtheory Collagen for almost 3 years now but I have not experienced the side effects mentioned by the users. In fact, at 67 years of age, I feel much stronger and my joints are more firm while taking Youtheory Collage at 3 tablets in the morning and another 3 tablets in the evening. I happened only to stop taking it because of its sudden unavailability in most of the drugstores in the Philippines. I hope that the leading drugstores (i.e. Watsons, Mercury and Rose Pharmacy) will stock this product soon.

Martine says:

I never had any allergic food reactions. I only took Youtheory Collagen Advanced Formula once (3 pills) and had a bad reaction during the following hours (fast heart rate / blurry vision). I was feeling really bad and there were no other possible causes. So I am sure that this reaction that I had was because of this product.

Laurie says:

I bought a bottle of YouthTheory Collagen tablets at Costco a week ago and immediately started taking them. Every day I have experienced indigestion and horrible gas. The gas distends my belly making me uncomfortable and it is difficult to pass. This is the only thing different in my diet which leads me to believe it is the cause of my stomach distress. I will stop taking it and post an update in a week.

LeeBee says:

I started with 3 pills in am and within an hour my stomach started bloating and distended. I thought it was because I drank pop. It passed. Then I took 3 more at bedtime, no pop. Same thing happened and my stomach hurts bad. I will be returning for sure!!!!

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