Brand: PER4M - compare every PER4M product
From £24.95 across 7 UK retailers.
Categories: Sleep Support, Magnesium, Sleep & Recovery, Zinc, Ashwagandha, Capsule
Serving size: 4 capsules
Per4m Sleep capsules are a multi‑ingredient, capsule‑based supplement designed to support sleep quality and recovery, offered in several pack sizes and flavours.
+ Includes a blend of L‑Tryptophan, 5‑HTP, L‑Theanine, Ashwagandha, Magnesium Glycinate and Vitamin B6, all doses fully disclosed. + Contains 5‑HTP and L‑Tryptophan, ingredients that are uncommon in many sleep formulas. + Synergistic pairings such as L‑Theanine + Ashwagandha and Vitamin B6 + 5‑HTP may enhance relaxation and serotonin conversion. + Larger packs tend to provide better value within the premium tier.
- Vitamin B6 may compete with Zinc for absorption (moderate antagonism). - 5‑HTP and L‑Tryptophan are antagonistic, potentially reducing each other’s effectiveness if taken together.
The Per4m Sleep range stands out by transparently listing relatively high doses of both 5‑HTP and L‑Tryptophan—ingredients rarely combined in competing sleep aids—while pairing them with calming agents like L‑Theanine and Ashwagandha. This formulation aims for a balanced relaxation effect, though users should be aware of the modest absorption interaction between Vitamin B6 and Zinc and the stronger antagonism between 5‑HTP and L‑Tryptophan, which may warrant spacing or choosing one of the two. All variants share the same allergen profile (eggs, fish, milk, soya, tree nuts) and capsule format; only pack‑size pricing differs, with larger packs generally offering a more economical option.
| Retailer | Price | Availability | Link |
|---|---|---|---|
| Nutristore | £24.95 | In stock | View |
| CNSport | £26.98 | In stock | View |
| NI Supplements | £27.90 | In stock | View |
| Pitstop Nutrition | £34.98 | In stock | View |
| Elite Supps UK | £35.98 | In stock | View |
| PER4M | £38.98 | In stock | View |
| Assured Supplements UK | £27.99 | Out of stock | View |