Frequently Asked Questions | Crushed Tonic

What are the Clinical Studies?

"Results showed that regular intake of our collagen may improve skin elasticity, reduce facial wrinkle appearance and improve skin complexion homog...

Is collagen still effective at boiling temperatures?

"High-quality collagen peptides in powders are temperature stable," notes Ferira. What this means is that the collagen powder is quite versatile...

Can you build up a tolerance to collagen?

Nope! Technically, collagen is really just like any other protein you are consuming on your plate-- something you’ve been eating here and there al...

Can men drink collagen?

Collagen isn't just for women— it is a gender-neutral product! Men also benefit from this essential structural protein that's found in us all (our...

How much mercury is in a serving of marine collagen?

There is virtually zero mercury in our collagen! We have tested to ensure there are no metals or toxins— and our collagen has been filtered and ste...

Which type of collagen do you use? Type I, II, or III?

Our collagen is primarily comprised of two types of collagen, types I & III. Type I and Type III collagen benefits include promoting healthy ha...

What is Collagen?

Mainstream usage of collagen has been mostly topical, which leads people to mistakenly believe it to be only something to apply externally to skin...

What does collagen help with besides skin and hair?

Collagen peptides, which have been associated with the skin and joints for many years, turned out to be the key to many different health problems ...

are there metals or toxins in your collagen?

Our collagen contains no metals. Our collagen is purest of its kind — many breeds of wild fish now contain high levels of mercury and other toxic...

What are amino acids and why are they important for skin health?

Did you know that collagen contains 19 out of 20 essential amino acids the body needs? Collagen, defined at its simplest form, is a type of protei...

What is the difference between crushes and tubbies?

Crushes come with 1B CFU probiotics and 1000 mcg biotin in addition to 2-2.5g organic superfoods like matcha, turmeric + ginger + cinnamon, and luc...

Do you provide International Shipping?

Yes, we do!However, please note that if our products are denied by customs / held by customs or additional costs incur, we are unable to retrieve t...