What is collagen?
Collagen is the most abundant protein in the body. It serves as a structural component for skin, hair, nails, joints and even the intestines. As we age, natural collagen production slows down — visible signs of skin ageing, reduced elasticity, fine wrinkles, brittle nails and thinning hair can be the result.
Collagen supplements provide hydrolysed peptides as a source of amino acids. In randomised, placebo-controlled studies with such peptides, skin elasticity was significantly better than placebo after 4 weeks (Proksch et al., 2014). Collagen Pro-Active Advanced contains 10'000 mg of collagen peptides per daily dose, plus vitamin C (80 mg), which contributes to normal collagen formation, and zinc (10 mg) for the maintenance of normal skin and nails.
What speaks for taking it in the evening
The body works according to a circadian rhythm, with repair processes reaching their peak during sleep. At night, skin cell renewal increases, muscle repair is accelerated and the body enters a natural state of regeneration.
Whether the time of day changes the effect is not established: the available studies compare collagen peptides with placebo, not evening with morning. For many people the evening is simply when the daily dose is easiest to keep up — and consistency is what the studies assume.
The role of glycine for restful sleep
Collagen is rich in glycine — an amino acid that supports healthy sleep patterns. Glycine can help regulate core body temperature, a key factor in restful sleep, and supports the production of calming neurotransmitters. Those studies used around 3 g of pure glycine before bed, not collagen drinks — so they are not direct evidence for our product.
Skin and hair regeneration overnight
At night, the skin's barrier function is at its weakest and its repair mode at its strongest. Collagen in the evening supplies the body with amino acids it uses for connective tissue. For hair and scalp there is no solid evidence base for collagen peptides — so we promise nothing there.
Muscle regeneration and joint health
Active people or those with joint complaints also benefit. During sleep, the body focuses on repairing muscles and connective tissue. Collagen peptides supply amino acids the body uses for tendons, ligaments and connective tissue. In randomised studies, joint discomfort in physically active adults decreased (Clark et al., 2008).
Tips for optimal effect
For the greatest possible benefit, consistency is key: taking the recommended daily dose supports lasting results. Vitamin C contributes to normal collagen formation and is included in our formula at 80 mg per daily dose. Collagen Pro-Active Advanced is a ready-to-drink solution for quick absorption — ideal for easy use in the evening.
Closing note
There is no solid data for any particular time of day. What the studies do assume is daily intake over several weeks — and for many people the evening is simply the most practical slot for that.

