Page 82 - Jurnal Penelitian MTsN 6 Jakarta
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cells,  precancers,  and  basal  cell        UV rays. Wearing sunscreen with a
                        cancer.  This  is  caused  by  the           higher  SPF  value  will  reduce
                        radiation of electromagnetic waves           exposure  to  ultraviolet  rays  more
                        on UV light. The wavelength of the           and  longer.  Based  on  the  tropical
                        UV spectrum is 100 to 400 nm. This           climate    in   Indonesia,     it   is
                        spectrum  is  divided  into  three,          recommended  that  a  good  SPF
                        namely: UV-A (315-400 nm), UV-B              value is above SPF 15, namely SPF
                        (280-315 nm), and UV-C (290-400              30+ (Ayu et al., 2022).
                        nm) (Marbun et al., 2023). However,            The  SPF  content  can  be
                        UV-C rays cannot reach the Earth's           obtained from mango leaves extract
                        surface because most of them are             which  contains  flavonoids  and
                        already  absorbed  by  the  ozone            shows  high  SPF  values,  namely
                        layer     in    the     atmosphere.          5,556,  16,675,  and  22,243,  with
                        Meanwhile,  UV-A  and  UV-B  rays            medium      and    ultra   protection
                        are    able    to   penetrate     the        classifications  (using  the  UV-Vis
                        atmosphere and can cause damage              spectrophotometry           method).
                        to  the  skin.  (Sahla  et  al.,  2024).     Phenolic  compounds  from  mango
                        Because the lips are often exposed           leaves extract can be used as active
                        directly  to  UV  rays,  inadequate          ingredients in sunscreens because
                        protection can increase these risks          they can resonate when exposed to
                        further.                                     UV  rays.  Flavonoids,  as  part  of
                           One  of  the  efforts  to  overcome       phenolic  compounds,  absorb  UV
                        this problem is to use lip balm that         light  and  have  photoprotective
                        contains  sunscreen.  Lip  balm  is  a       properties, including UV absorption
                        cosmetic  product  that  can  protect        (Lisnawati  et  al.,  2019).  Mango
                        the lips from excessive exposure to          leaves extract is a potential source
                        UV rays. The main ingredients of lip         of  minerals  such  as  nitrogen,
                        balm are wax, fat, and oil. Lip balm         potassium,     phosphorus,       iron,
                        is applied to the lips as a moisturizer      sodium,     calcium,    magnesium,
                        so that the lips do not dry out and          vitamins A, B, E, and C (Kumar et
                        crack  easily.  (Mayuri  et  al.,  2014).    al.,  2021).  In  addition,  other
                        Lip balm provides a layer of oil on          ingredients used in the manufacture
                        the surface of the lips that serves as       of Manglow lip balm are beeswax,
                        a lip protector from the weather. So,        virgin coconut oil, and cocoa butter.
                        lip  balm  can  also  be  said  to  be  a    The  content  and  function  of  these
                        preparation  used  on  the  lips  by         ingredients are as follows.
                        forming a layer of oil on the surface          Beeswax  contains  70%  esters,
                        of  the  lips  that  can  provide            such    as   various  monoesters,
                        protection  from  outside  influences.       diesters,   hydroxylation     esters,
                        (Fithri et al., 2022).                       hydrocarbons, and free fatty acids.
                           The effectiveness of sunscreen is         This  content  causes  ±beeswax  to
                        based on the Sun Protection Factor           tend  to  be  wax  rather  than  fat.
                        (SPF)  value,  which  indicates  the         Beeswax is a natural ingredient that
                        ability  of  sunscreen  products  to         is  very  beneficial  for  lip  health
                        protect  the  skin  from  exposure  to       because  of  its  properties  that
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