Sometimes we need to use synthetic ingredients to help with the formulation, we never use nasty ingredients, only safe ingredients for skincare. 
 
Ingredients affecting 100% Natural Claims and what they do:

Sodium Ascorbyl Phosphate
- is a stable, water-soluble form of Vitamin C that functions as an antioxidant.

Propylene Glycol is a humectant (hydrating) and delivery ingredient used in cosmetics. In cosmetics, propylene glycol is used in small amounts to keep products from melting in high heat or from freezing.

PEG-6 Caprylic/Capric Glycerides - PEG is an acronym for polyethylene glycol, an amazingly versatile ingredient in skin care products because of the many uses it has and its broad compatibility with different types of ingredients. PEG is often mixed with an array of hydrating emollients including caprylic/capric triglyceride - derived from coconut oil and glycerin, it’s considered an excellent emollient and skin-replenishing ingredient.

Phenoxyethanol is a widely used synthetic preservative that has global approval for use in all cosmetic products in concentrations up to 1%. We stick to below this level. 

Ethylhexylglycerin
is a synthetic skin-softening agent also used as a preservative, a carrier, or suspending agent for other preservatives such as phenoxyethanol.

Tetrasodium EDTA - 
Chelating agent used to prevent minerals present in formulations from bonding to other ingredients.