Made for your goals

Support for what you’re working on.

Formulas for gut, sleep, stress, blood sugar and more.

A tan capsule inside a dotted ring, with four trust points: no harmful fillers, formulated by a holistic doctor, condition-specific formulas, made in USA

Clean, down to the capsule.

Customer reviews

Real people, real reviews

Rated 4.7 out of 5 by 400+ customers
A Berberine bottle on a counter in window light
… They don't have much of a taste,and they are very easy to swallow,even for those of us with difficulty swallowing pills. … Fast shipping. Quality products.
AnnaShop app review
Women's Multi Vitamin Min-Amino and Tri Blend Probiotics bottles on a wood table
Great quality. Have been buying from them for over 16 years
BrendaShop app review
A hand holding a Women's Multi Vitamin Min-Amino bottle against a blue sky
Great product been using it for four months now thank you fast shipping
MichaelShop app review
Labeled glass jars of supplement capsules on a customer's kitchen shelf
… These products also have a dedicated shelf in my kitchen. To anyone familiar with NYC living and the shortage of space, you KNOW how much I love them!
Tiffany M.Google review
A Cortisol Reduce bottle beside a glass of water on a kitchen counter
Great customer service and affordable products!
AnnetteShop app review
A Berberine bottle on a counter in window light
Fast delivery and personal note from the doctor was a nice touch. Hoping for the best results.
JazmineShop app review
Women's Multi Vitamin Min-Amino and Tri Blend Probiotics bottles on a wood table
I love doctor CC oh, I think she is one of the best doctors in California... She has so much knowledge about all kinds of different herbs... I highly recommend her...
Crissie C.Google review
A hand holding a Women's Multi Vitamin Min-Amino bottle against a blue sky
LOVE LOVE LOVE IT! I’ll take it during the day if super stressed and it doesn’t make me sleepy but also helps with sleep at night somehow
LaNellShop app review
A Cortisol Reduce bottle beside a glass of water on a kitchen counter
Quality product developed by a caring and knowledgeable herbalist
ShawnaShop app review
A Berberine bottle on a counter in window light
Only source I could find for an oil free version of Flaxseed. No gallblader means oil based supplements dont assimilate. Excellent product.
LindaShop app review
Women's Multi Vitamin Min-Amino and Tri Blend Probiotics bottles on a wood table
… I have purchased multiple supplements from this company and have zero complaints. … I would give 10 stars if it were an option.
AmberShop app review
A hand holding a Women's Multi Vitamin Min-Amino bottle against a blue sky
Shipping time is great and very pocket friendly … I will definitely shop more so you should too!!!
ZionShop app review
A Cortisol Reduce bottle beside a glass of water on a kitchen counter
Does exactly what’s described in the supplement! Gave me energy naturally & keeps me active throughout the day! Would order again in the future! ❤️
PatriciaShop app review
A Berberine bottle on a counter in window light
Does exactly what’s described in the supplement! Felt the improvement from day one! Would order again in the future! ❤️
PatriciaShop app review
Women's Multi Vitamin Min-Amino and Tri Blend Probiotics bottles on a wood table
Delivery was great.. been taking them a week no side effects and experiencing slight boost in energy
TamaraShop app review
A hand holding a Women's Multi Vitamin Min-Amino bottle against a blue sky
… I am in Florida on the other side of the country and I got my package in 2 or 3 days! Highly recommended.
Frank L.Google review
A Cortisol Reduce bottle beside a glass of water on a kitchen counter
… Their prices are so reasonable the shipping is fast and I love the clean, fresh and natural look of their supplements.
Simone E.Google review
A Berberine bottle on a counter in window light
Dr. CC is the best! … her supplements are top notch... not to mention, they're actually affordable!
Nicole F.Google review
Women's Multi Vitamin Min-Amino and Tri Blend Probiotics bottles on a wood table
Dr CC is a wealth of information backed by research. … Ordering online from her website is easy and the product gets arrives quickly.
Annie S.Google review
A hand holding a Women's Multi Vitamin Min-Amino bottle against a blue sky
I have been going to Dr. CC for several years now … I will always go to Dr. CC for advise and my supplements!
Dave B.Google review
A Cortisol Reduce bottle beside a glass of water on a kitchen counter
Our family is very happy with the quality of supplements provided by CC for the past 3 years.
Linda C.Google review
A Berberine bottle on a counter in window light
… She takes her time with you and I never feel rushed. … I get my stuff within a day.
Tammy C.Google review
Women's Multi Vitamin Min-Amino and Tri Blend Probiotics bottles on a wood table
… they’re the cleanest vitamins I’ve ever found. … She is legit and very sweet
Amy M.Google review
A hand holding a Women's Multi Vitamin Min-Amino bottle against a blue sky
Our family has used Signature Supplements for years and we have been very pleased with all the products we have purchased. … customers for life!
Kelly F.Google review
A Cortisol Reduce bottle beside a glass of water on a kitchen counter
Dr.CC has been so helpful with all my questions. Easy shopping site and fast delivery.
Tony S.Google review
A Berberine bottle on a counter in window light
We loved our hair test experience and we learned a ton. 100% recommended and will definitely be buying more supplements here
Emily E.Google review
Women's Multi Vitamin Min-Amino and Tri Blend Probiotics bottles on a wood table
I have received my herbs and I love them I will be back as soon as possible, Thanks so much for good happy herbs.
Valerie B.Google review
A hand holding a Women's Multi Vitamin Min-Amino bottle against a blue sky
Best Berberine in the market for the money! Have tried many others six times the price and not has the results I’ve had with this!
LaNellShop app review
A Cortisol Reduce bottle beside a glass of water on a kitchen counter
This is a great product. … signature makes the product easy to find, affordable and quick shipping. I will continue your order from this company.
KatyShop app review
Women's Multi Vitamin Min-Amino and Tri Blend Probiotics bottles on a wood table
I have taken a variety of these supplements recommended by Dr C.C. They are well priced …
KikiGoogle review

2 minutes · 4 questions

Find your formula

Four honest questions about how you’ve been feeling, and we’ll suggest the formulas that fit.

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Who are you shopping for?

Your results will be tailored to your answer.

How has your body been feeling lately?

Choose the one that feels most true, even on a hard week.

If your body could ask for one thing, what would it be?

Go with your gut. This is the question that matters most.

If your body could ask for one thing, what would it be?

Go with your gut. This is the question that matters most.

If your body could ask for one thing, what would it be?

Go with your gut. This is the question that matters most.

If your body could ask for one thing, what would it be?

Go with your gut. This is the question that matters most.

If your body could ask for one thing, what would it be?

Go with your gut. This is the question that matters most.

If your body could ask for one thing, what would it be?

Go with your gut. This is the question that matters most.

If your body could ask for one thing, what would it be?

Go with your gut. This is the question that matters most.

If your body could ask for one thing, what would it be?

Go with your gut. This is the question that matters most.

If your body could ask for one thing, what would it be?

Go with your gut. This is the question that matters most.

If your body could ask for one thing, what would it be?

Go with your gut. This is the question that matters most.

One last thing: how long has this been going on?

Almost there. This helps us fine-tune your results.

Your results

Here’s where we’d start

These formulas fit what you told us. Each product page lists every ingredient and any notes to read before you start.

Select options

A close-up of herbal capsules filled with plant powder

How we formulate

Natural formulas, thoughtfully made.

Each of our formulas starts with a real need, not a trend. Dr. CC, PhD, formulated every one.

Made in USA.

Our formulas are made here, from quality, ethically sourced ingredients.

Every ingredient has a job.

Herbs, vitamins, minerals and more, each chosen for the role it plays.

No harmful fillers.

And none we don't need: no synthetic silicon dioxide, magnesium stearate, talc or artificial colors.

Our standards

What’s in the bottle, and what isn’t

Find the Other Ingredients line on any supplement and ask what each one is there for. Here’s how our capsule labels compare with many mass-market brands.

Your Signature Supplements
Many mass‑market brands
The capsule
Plant-based
Sometimes gelatin
Synthetic silicon dioxide
None
Common
Magnesium stearate or talc
None
Common
Artificial colors, sugars or sweeteners
None
Common
Our formulas
Formulated by Dr. CC, PhD
Varies
Made in
USA
Varies