The invention relates to the field of beverages, in particular to a
collagen peptide beverage and a preparation method thereof. The
collagen peptide beverage comprises the following raw materials in parts by weight of 10-50 parts of a
protein composition, 1-5 parts of a lightproof composition, 0.005-0.05 part of gamma-
aminobutyric acid, 0.1-0.2 part of an acidity adjusting agent, 1-10 parts of
erythritol, 0.05-0.1 part of a
sweetening agent and 20-90 parts of water. The preparation method of the
collagen peptide beverage comprises the following steps of (1) performing pretreatment: firstly, weighing fish collagen
peptide powder in a certain proportion according to a formula, adding
purified water, performing dissolving to obtain liquid, adding the liquid in a filter containing
activated carbon, and adjusting the temperature to 60+ / -8 DEG C; (2) performing blending: adding
proteoglycan and
elastin to the fish collagen
peptide obtained in the step 1, to obtain a
protein composition, so as to obtain a material 1; (3) performing mixing, heating and stirring for dissolving; and (4) performing cooling to
room temperature to obtain the collagen
peptide beverage. The collagen peptide beverage disclosed by the invention can enter deeply the
dermis layer to enable the
dermis layer of the
skin to achieve the best state, and nutrients of the
dermis layer achieve a
skin layer through a basal layer.