Perhaps I am preaching to the choir but there is another popular misconception concerning "natural" versus "chemical". Every substance in the universe is a chemical. Which includes all natural products. Water is a chemical, we are 100% made of chemicals, everything on Earth is comprised of chemicals. A chemical-free product does not exist.
Natural products can be great but do not believe that if something is natural, it is automatically good and harmless.
Some of the most toxic substances are natural - botulinum toxin, uranium, curare etc.
Rotten meat, moldy bread and excrement are also natural.
Toxicity is all in the dose. Even natural products that are not considered toxic are harmful in larger quantities. If you drink more than a few liters of water in one go, you will die of water poisoning (electrolyte imbalance).
Stating that something has no side effects because it is natural is a logical fallacy, and the same with saying that something is harmful because it is "produces in a laboratory".
Vitamins are also naturally produced - in fruits, plants or animal products.
If you produce them in a laboratory, they are 100% identical to the "natural" vitamins. There is absolutely no difference.
What can make a difference is that in food for example, there are often multiple vitamins , minerals and trace elements and such complex can enhance each other's absorptions (for example iron and vit. C). Unfortunately, this planet has so many people that in order to feed them all, the soil is extensively overused and depleted of miners that should normally be present there. It would be great to get all your vitamins, minerals, and trace elements from the food but it is not very realistic in the current world.
Concerning our vitamin creams:
Our Tretinoin cream should not be used in pregnancy or breastfeeding in conjunction with dermarolling as it is stated everywhere on our website and in the instructions. It is due to its content of vit. A, which is very important to get in pregnancy but care has to be taken not to overdose.
In any case, whether natural or not, you have to be very careful in pregnancy and breastfeeding with everything. My personal opinion on vit. A used on open skin in pregnancy is that even that is safe (due to the enormous doses required to induce toxicity, such doses simply are unattainable that way), but opinions sometimes turn out to be wrong, hence the precaution.