Alpecin C1 Caffeine Shampoo, 250 mL (8.45 fl oz)

Looking for a caffeine shampoo that fits a daily wash? Alpecin C1 Caffeine Shampoo is a cleansing shampoo made for men whose hair looks thin, and it is formulated with caffeine, zinc, niacin and castor oil in an 8.45 fl oz bottle. It cleanses the scalp and helps strands look and feel thicker, stronger and fuller.

Formulae details and what the label lists

Caffeine, zinc, niacin and castor oil are the ingredients named in the product data, so those are the names to compare when you are weighing bottles side by side. Alpecin presents C1 as a shampoo rather than a treatment product, and the brand describes it as German engineering for your hair, built on decades of German research. If you are specifically after a sulfate-free, silicone-free or paraben-free formulae, read the ingredient panel on the bottle you receive, because this listing does not state those flags. What it does give you is the ingredient set and the way the shampoo is meant to be used: daily, worked into the scalp, as the wash step of your normal routine.

How this shampoo slots into a thin-looking hair routine

C1 is a wash-step product, so it belongs at the beginning of a routine, not the end. Work it through wet hair, massage it into the scalp, then rinse and follow with your usual conditioner or leave-in. Alpecin builds the C1 line around daily use, which makes it simple to keep in your morning shower rather than saving it for special occasions. If you already use a styling product or a scalp-focused leave-in, this shampoo is the cleansing step that comes before it.

Size, format and how much you get

Alpecin C1 Caffeine Shampoo comes in an 8.45 fl oz bottle. That is a standard shower-size format, and the pack is designed for the daily washing routine the brand describes. The table below gathers the attributes stated for this product.

Scent, lather and how it rinses out

Alpecin describes C1 as a shampoo that cleanses the scalp as it works through the hair. Castor oil sits alongside caffeine, zinc and niacin in the formulae, and the brand frames the wash around a fuller look rather than a heavy coating. Because the listing does not spell out the fragrance, the lather or the finish, the most reliable way to judge scent and rinse-out feel is the bottle itself. What the product data does confirm is the job it is built for: a daily cleanse that leaves hair looking and feeling thick and full.

Points to weigh when choosing a caffeine shampoo

What size is this shampoo, and how long does a bottle last?

The bottle holds 8.45 fl oz. Alpecin positions the formulae for daily use, so the size suits a regular wash routine rather than occasional use.

Is this shampoo suitable for thin-looking hair?

Alpecin makes C1 for men with thinning hair and describes it as leaving hair feeling thicker, stronger and fuller. It is a cleansing shampoo, so it works as the wash step in a routine built around that goal.

What key ingredients are listed on the label?

Caffeine, zinc, niacin and castor oil are the ingredients named in the product data. The brand says caffeine, zinc and niacin work together in the formulae, with castor oil also listed.

How often does the pack say to use it?

The product information describes daily use of Alpecin C1. If your scalp tends to react to frequent washing, follow the directions printed on the bottle.

How often the pack says to use it

Alpecin presents C1 as a daily shampoo, which is why the bottle is sized for a regular shower routine. Used as the wash step in your usual rotation, it keeps the scalp cleansed and the hair looking and feeling full.