Quick answer

If your main concern is dull, dehydrated skin or early loss of firmness, a 14-day course of collagen shots 5000 mg is a reasonable starting point: you take one shot daily, and most people notice better hydration and a slightly more supple feel rather than fewer deep lines. If you expect visible wrinkle reduction in two weeks, you will be disappointed. Choose a longer, higher-dose format instead, and give it at least eight weeks.

The symptom: skin looks tired but not deeply lined

This is the profile that suits a short collagen course best. Your skin feels tight after cleansing, makeup sits in fine dehydration lines rather than deep creases, and firmness drops noticeably when you are tired or stressed. These are surface-level signs linked to moisture and elasticity, not structural damage.

If that sounds like you, a 14-day supply is long enough to judge tolerance and initial response without committing to a two-month pack.

The likely cause: collagen decline plus a short-term trigger

Collagen production falls gradually with age, but the change you see in the mirror is often accelerated by sun exposure, poor sleep, low protein intake, or a harsh skincare routine. A collagen supplement addresses only the nutritional side of that equation.

That is why dosage matters. The Lashilé Shots Collagène 5000 mg delivers 5000 mg per shot, a high daily amount compared with many powders and capsules. A concentrated dose taken consistently is more useful than a small dose taken occasionally.

The corrective action: one shot a day, judged at day 14

Take one shot per day at a consistent time, ideally with or after a meal containing protein and vitamin C, which supports normal collagen formation. Do not double up if you miss a day; simply resume the next morning.

Judge the 14-day mark on three things: how your skin feels after cleansing, whether makeup sits more smoothly, and whether firmness has improved. Do not judge it on deep wrinkle depth. Those changes take longer than two weeks and depend on factors a supplement cannot control.

  • Take one shot daily, not two, even if you feel you need more.
  • Keep the rest of your routine stable so you can attribute any change correctly.
  • Photograph your skin in the same light on day 1 and day 14 for an honest comparison.

When to stop or choose a different option

Stop and reassess if you see no change in hydration or suppleness at day 14. That does not mean collagen does not work for you; it usually means the timeframe was too short or the concern is not collagen-related.

If your priority is deep wrinkles and loss of firmness, switch to a longer format such as the 2-month Shots Acide Hyaluronique pack, which combines hyaluronic acid with a longer runway for visible change. If your concern is hair rather than skin, a collagen shot is the wrong tool entirely.

Diagnose your own 14-day result

  • Symptom: skin feels softer and more hydrated, fine lines look less obvious: This is the expected early response to a 5000 mg daily collagen shot. Hydration and suppleness are the first things to shift, usually within the first two weeks. Continue with a second 14-day pack if you want to build on this, or move to a 2-month format for a longer run.
  • Symptom: no change at all by day 14: Either the timeframe was too short or your concern is not primarily collagen-related. Check whether you took the shot consistently and whether your diet contains enough protein and vitamin C. Do not increase the dose. Either extend to 8 weeks or switch to a hyaluronic acid format if hydration is the main issue.
  • Symptom: deep wrinkles and sagging are your main concern: A 14-day collagen course is not designed to reverse structural aging. Deep lines and loss of firmness need a longer timeline and a formula aimed at hydration and elasticity together. Choose the 2-month Shots Acide Hyaluronique pack instead, and plan on at least eight weeks before judging results.
  • Symptom: your concern is hair, not skin: Collagen shots target skin elasticity, not hair growth or shedding. Taking them for hair is a mismatch of format and goal. Switch to Shots Cheveux Triple Action - 1 mois, which is formulated for growth, regrowth, and anti-shedding.

Product facts that matter for this decision

  • Shots Collagène 5000 mg - 14 jours: Shots Collagène 5000 mg - 14 jours is a drinkable food supplement with 5000 mg of collagen per shot, designed to support skin elasticity and reduce the appearance of wrinkles and signs of aging. The 5000 mg dose is high enough that a 14-day course is a fair test of how your skin responds, rather than a dose too low to judge.
  • Shots Collagène 5000 mg - 14 jours: The formula is sugar-free, free from artificial colorings, and flavored with natural peach aroma. Sugar-free matters if you are watching intake during a daily routine, and the peach flavor makes a 14-day streak easier to keep than unflavored collagen.
  • Shots Acide Hyaluronique - 2 mois: Shots Acide Hyaluronique - 2 mois is a concentrated drinkable supplement with 150 mg hyaluronic acid per shot, formulated to hydrate skin from within and improve visible signs of skin aging. It is vegan, sugar-free, and free from artificial colorings. If your main complaint is dehydration and fine lines rather than elasticity, this longer 2-month format targets hydration more directly and gives more time for visible change.
  • Shots Cheveux Triple Action - 1 mois: Shots Cheveux Triple Action - 1 mois is a vegan, sugar-free, made-in-France drinkable supplement formulated for hair growth, regrowth, and anti-shedding. If your real concern is hair shedding or growth rather than skin, this is the relevant format instead of a collagen shot.